diff --git a/src/visualization.jl b/src/visualization.jl
index be67517..5234d5a 100644
--- a/src/visualization.jl
+++ b/src/visualization.jl
@@ -157,7 +157,7 @@ function build_ui(U, V, param_obs_map::NamedTuple, params_obs, heat_obs)
 
     on(btn_start.clicks) do _
         @async while running[]
-            multi_step!((U, V), stepsize[], heat_obs, params_obs; step_method=step_method[])
+            multi_step!((U, V), stepsize[] * 5, heat_obs, params_obs; step_method=step_method[])
             sleep(0.0015)  # ~20 FPS
         end
     end