diff --git a/Cargo.toml b/Cargo.toml
index aed64c1..aea60f4 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,4 +11,3 @@ regex = "1.10.5"
 nanoid = "0.4.0"
 indoc = "2.0.5"
 lru = "0.12.3"
-tracing = "0.1.40"
diff --git a/src/island.rs b/src/island.rs
index 7c72177..d25ca75 100644
--- a/src/island.rs
+++ b/src/island.rs
@@ -1,3 +1,5 @@
+use crate::config::SsrkitConfig;
+use lru::LruCache;
 use nanoid::nanoid;
 use serde_json::Value;
 use std::borrow::Cow;
@@ -62,7 +64,6 @@ impl IslandManifest {
 
 pub struct ProcessContext {
     pub path: String,
-    // 可以根据需要添加更多字段
 }
 
 pub trait IslandProcessor: Send + Sync {
@@ -183,19 +184,28 @@ impl Clone for IslandManager {
     }
 }
 
-static ISLAND_CACHE: OnceLock<Mutex<HashMap<String, String>>> = OnceLock::new();
+static ISLAND_CACHE: OnceLock<Mutex<LruCache<String, String>>> = OnceLock::new();
+static CONFIG: OnceLock<SsrkitConfig> = OnceLock::new();
+
+pub fn init_island_cache(config: &SsrkitConfig) {
+    let _ = CONFIG.set(config.clone());
+}
 
 pub fn get_or_render_island<F>(key: &str, render_fn: F) -> String
 where
     F: FnOnce() -> String,
 {
-    let cache = ISLAND_CACHE.get_or_init(|| Mutex::new(HashMap::new()));
+    let cache = ISLAND_CACHE.get_or_init(|| {
+        let binding = SsrkitConfig::default();
+        let config = CONFIG.get().unwrap_or(&binding);
+        Mutex::new(LruCache::new(config.island_cache_size))
+    });
     let mut cache_guard = cache.lock().unwrap();
     match cache_guard.get(key) {
         Some(cached) => cached.clone(),
         None => {
             let rendered = render_fn();
-            cache_guard.insert(key.to_string(), rendered.clone());
+            cache_guard.put(key.to_string(), rendered.clone());
             rendered
         }
     }
diff --git a/src/lib.rs b/src/lib.rs
index b7cf04c..8bcacf0 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -2,12 +2,14 @@ pub mod island;
 pub mod params;
 pub mod render;
 pub mod template;
+pub mod config;
 
 // Re-export main types and traits
 pub use island::{CombinedIslandProcessor, IslandManager, IslandProcessor, ProcessContext, get_or_render_island};
 pub use params::{CombinedParamsProcessor, ParamsProcessor};
 pub use render::{init_ssr, SsrRenderer, get_renderer};
 pub use template::Template;
+pub use config::SsrkitConfig;
 
 // Re-export important types from serde_json that are commonly used
 pub use serde_json::{Map, Value};
@@ -18,11 +20,6 @@ pub mod prelude {
     pub use crate::params::{CombinedParamsProcessor, ParamsProcessor};
     pub use crate::render::{init_ssr, SsrRenderer, get_renderer};
     pub use crate::template::Template;
+    pub use crate::config::SsrkitConfig;
     pub use serde_json::{Map, Value};
-}
-
-// If you have any error types, you might want to re-export them here
-// pub use crate::error::SsrKitError;
-
-// If you have any configuration structs, you might want to re-export them here
-// pub use crate::config::SsrKitConfig;
\ No newline at end of file
+}
\ No newline at end of file
diff --git a/src/render.rs b/src/render.rs
index adb11fa..bb71528 100644
--- a/src/render.rs
+++ b/src/render.rs
@@ -1,12 +1,12 @@
-use crate::island::{IslandManager, IslandProcessor, ProcessContext};
+use crate::island::{init_island_cache, IslandManager, IslandProcessor, ProcessContext};
 use crate::params::ParamsProcessor;
-use crate::template::Template;
+use crate::template::{init_template_cache, Template};
+use crate::SsrkitConfig;
 use regex::Regex;
 use serde_json::{json, Value};
 use std::collections::HashMap;
 use std::sync::Arc;
 use std::sync::OnceLock;
-use tracing::{info, instrument};
 
 // 全局靜態變量
 static ISLAND_REGEX: OnceLock<Regex> = OnceLock::new();
@@ -21,7 +21,6 @@ pub struct SsrRenderer {
 }
 
 impl SsrRenderer {
-    #[instrument(skip(params_processor, island_manager, template))]
     fn new(
         params_processor: Box<dyn ParamsProcessor>,
         island_manager: Arc<IslandManager>,
@@ -34,7 +33,6 @@ impl SsrRenderer {
         }
     }
 
-    #[instrument(skip(self, params, render_fn), fields(path = %path))]
     pub fn render<F>(
         &self,
         path: &str,
@@ -45,7 +43,6 @@ impl SsrRenderer {
         F: FnOnce(&str) -> Result<String, String>,
     {
         let processed_params = self.params_processor.process(path, &params);
-        info!("Params processed");
 
         let props = serde_json::json!({
             "url": path,
@@ -53,23 +50,18 @@ impl SsrRenderer {
         });
 
         let content = render_fn(&props.to_string())?;
-        info!("Render function called");
 
         let mut rendered = serde_json::from_str::<Value>(&content)
             .map_err(|e| format!("Failed to parse render result: {}", e))?;
-        info!("Render result parsed");
 
         // 條件性島嶼處理
         let mut used_islands = Vec::new();
         if let Some(html) = rendered["html"].as_str() {
             if html.contains("data-island") {
-                info!("Islands detected, starting replacement");
                 let (replaced_html, islands) = self.replace_island_placeholders(html)?;
                 rendered["html"] = Value::String(replaced_html);
                 used_islands = islands;
-                info!("Islands replaced");
             } else {
-                info!("No islands detected, skipping replacement");
             }
         }
 
@@ -83,11 +75,9 @@ impl SsrRenderer {
         };
 
         let result = self.template.render(&rendered, &islands_json);
-        info!("Template rendered");
         result
     }
 
-    #[instrument(skip(self, html))]
     fn replace_island_placeholders(&self, html: &str) -> Result<(String, Vec<String>), String> {
         let re = ISLAND_REGEX.get().expect("Regex not initialized");
         let mut result = html.to_string();
@@ -103,7 +93,6 @@ impl SsrRenderer {
             let rendered_island = self.island_manager.render_island(island_id, &props)?;
             result = result.replace(&cap[0], &rendered_island);
             used_islands.push(island_id.to_string());
-            info!("Island rendered: {}", island_id);
         }
 
         Ok((result, used_islands))
@@ -138,22 +127,28 @@ impl SsrRenderer {
     }
 }
 
-#[instrument(skip(params_processor_init, island_manager_init, template_init))]
 pub fn init_ssr(
     params_processor_init: impl FnOnce() -> Box<dyn ParamsProcessor>,
     island_manager_init: impl FnOnce() -> IslandManager,
     template_init: impl FnOnce() -> Template,
+    config: Option<&SsrkitConfig>,
 ) {
+    let config = config.cloned().unwrap_or_default();
+
     // 初始化正則表達式
     ISLAND_REGEX.get_or_init(|| {
         Regex::new(r#"<div data-island="([^"]+)"(?: data-props='([^']*)')?></div>"#).unwrap()
     });
 
     // 初始化 IslandManager
-    ISLAND_MANAGER.get_or_init(|| Arc::new(island_manager_init()));
+    let island_manager = island_manager_init();
+    init_island_cache(&config);
+    ISLAND_MANAGER.get_or_init(|| Arc::new(island_manager));
 
     // 初始化 Template
-    TEMPLATE.get_or_init(|| Arc::new(template_init()));
+    let template = template_init();
+    init_template_cache(&config);
+    TEMPLATE.get_or_init(|| Arc::new(template));
 
     // 初始化 Renderer
     RENDERER.get_or_init(|| {
@@ -164,7 +159,6 @@ pub fn init_ssr(
         )
     });
 
-    info!("SSR components initialized");
 }
 
 pub fn get_renderer() -> &'static SsrRenderer {
diff --git a/src/template.rs b/src/template.rs
index cb47a02..2a12b9f 100644
--- a/src/template.rs
+++ b/src/template.rs
@@ -1,15 +1,22 @@
+use crate::config::SsrkitConfig;
+use lru::LruCache;
 use serde_json::Value;
 use std::collections::HashSet;
 use std::sync::OnceLock;
 use std::sync::Mutex;
-use lru::LruCache;
-use std::num::NonZeroUsize;
 
 static TEMPLATE_CACHE: OnceLock<Mutex<LruCache<String, String>>> = OnceLock::new();
+static CONFIG: OnceLock<SsrkitConfig> = OnceLock::new();
+
+pub fn init_template_cache(config: &SsrkitConfig) {
+    let _ = CONFIG.set(config.clone());
+}
 
 fn get_cache() -> &'static Mutex<LruCache<String, String>> {
     TEMPLATE_CACHE.get_or_init(|| {
-        Mutex::new(LruCache::new(NonZeroUsize::new(100).unwrap()))
+        let binding = SsrkitConfig::default();
+        let config = CONFIG.get().unwrap_or(&binding);
+        Mutex::new(LruCache::new(config.template_cache_size))
     })
 }
 
@@ -23,7 +30,7 @@ impl Template {
     pub fn render(&self, content: &Value, islands: &Value) -> Result<String, String> {
         let cache_key = format!("{:?}:{:?}", content, islands);
         
-        // 嘗試從緩存中獲取
+        // Try to get from cache
         if let Some(cached_html) = get_cache().lock().unwrap().get(&cache_key) {
             return Ok(cached_html.clone());
         }
@@ -36,22 +43,22 @@ impl Template {
         let island_scripts = self.generate_island_scripts(islands);
 
         let rendered_html = if html.trim().starts_with("<!DOCTYPE html>") || html.trim().starts_with("<html>") {
-            // 如果是完整的 HTML，我們只需要插入額外的內容
+            // If it's a complete HTML, we just need to insert extra content
             let mut rendered_html = html.to_string();
 
-            // 在 </head> 之前插入額外的頭部內容
+            // Insert extra head content before </head>
             if let Some(head_end) = rendered_html.find("</head>") {
                 rendered_html.insert_str(head_end, &format!("{}<style>{}</style>{}", head_extra, css, island_scripts));
             }
 
-            // 在 <body> 之後插入額外的身體內容
+            // Insert extra body content after <body>
             if let Some(body_start) = rendered_html.find("<body>") {
                 rendered_html.insert_str(body_start + 6, body_extra);
             }
 
             rendered_html
         } else {
-            // 如果不是完整的 HTML，使用我們的模板
+            // If it's not a complete HTML, use our template
             indoc::formatdoc! {r#"
                 <!DOCTYPE html>
                 <html>
@@ -71,7 +78,7 @@ impl Template {
         let mut final_html = rendered_html;
         self.replace_island_placeholders(&mut final_html, islands);
 
-        // 將結果存入緩存
+        // Store result in cache
         get_cache().lock().unwrap().put(cache_key, final_html.clone());
 
         Ok(final_html)