diff --git a/render-wasm/src/render/options.rs b/render-wasm/src/render/options.rs
index 8142f1f52c..8dda8e4a3c 100644
--- a/render-wasm/src/render/options.rs
+++ b/render-wasm/src/render/options.rs
@@ -7,7 +7,7 @@ const SHOW_WASM_INFO: u32 = 0x08;
 // Render performance options
 // This is the extra area used for tile rendering (tiles beyond viewport).
 // Higher values pre-render more tiles, reducing empty squares during pan but using more memory.
-const VIEWPORT_INTEREST_AREA_THRESHOLD: i32 = 1;
+const VIEWPORT_INTEREST_AREA_THRESHOLD: i32 = 3;
 const MAX_BLOCKING_TIME_MS: i32 = 32;
 const NODE_BATCH_THRESHOLD: i32 = 3;
 const BLUR_DOWNSCALE_THRESHOLD: f32 = 8.0;