Simple brownian motion plot is insanely slow. How can I speed it up?

Specific Domains Visualization
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  1. I just downloaded the latest Julia 1.9.2 and it’s 4x/5x faster than before.
  2. If I make the grid above finer I can still make it arbitrarily slow
  3. The linked discussion is very helpful, but it would be great if there were some easy default options for automated subsampling