diff --git a/src/params.rs b/src/params.rs
index 5e2d770..008a374 100644
--- a/src/params.rs
+++ b/src/params.rs
@@ -39,8 +39,8 @@ impl Default for BlackHoleParams {
             disk_rotation_speed: 0.5,
             doppler_enabled: true,
             doppler_strength: 1.0,
-            steps: 300,
-            render_scale: 1.0,
+            steps: if cfg!(target_arch = "wasm32") { 200 } else { 300 },
+            render_scale: if cfg!(target_arch = "wasm32") { 0.75 } else { 1.0 },
             star_intensity: 1.0,
             grid_enabled: false,
             grid_density: 1.0,