diff --git a/CHANGELOG.md b/CHANGELOG.md
index 43c97fd..e3250ab 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 
 - Filter plugins check size before loading content into memory (prevents OOM on large inputs)
+- Status page pre-allocates collections with known capacities (meta plugins, compression info)
 - `#[inline]` on HTML escape helper functions (`esc`, `esc_attr`) for hot path performance
 - Removed `once_cell` crate (replaced with `std::sync::LazyLock` from Rust 1.80)
 - Removed `lazy_static` crate (replaced with `std::sync::LazyLock`)
diff --git a/src/common/status.rs b/src/common/status.rs
index f3615ba..0db7ec6 100644
--- a/src/common/status.rs
+++ b/src/common/status.rs
@@ -89,7 +89,7 @@ pub fn generate_status_info(
     };
 
     let _default_type = crate::compression_engine::default_compression_type();
-    let mut compression_info = Vec::new();
+    let mut compression_info = Vec::with_capacity(CompressionType::iter().count());
 
     // Sort compression types by their string representation
     let mut sorted_compression_types: Vec<CompressionType> = CompressionType::iter().collect();
@@ -141,7 +141,8 @@ pub fn generate_status_info(
         });
     }
 
-    let mut meta_plugins_map = std::collections::HashMap::new();
+    let mut meta_plugins_map =
+        std::collections::HashMap::with_capacity(MetaPluginType::iter().count());
     let mut enabled_meta_plugins_vec = Vec::new();
 
     // Sort meta plugin types by their string representation to avoid creating plugins just for sorting