Blender Tutorial: Speed Up Collision-based Simulation Baking 

Your channel is gold

I tried this method also for a geometry nodes proximity effect i wanted to have on my character. I have the impression that it´s faster than applying it to the original mesh. And by cutting the geometry input noodle the decimated body will not be rendered. Your tutorials have been gold to me! Edit: the geometry node modifier has to be put after the amature modifier to follow the animation just in case somebody does sth similar.

This is a really good solution!

thanks this gime good ideas with this really work. j

Thanks brother

Just coming back to show my appreciation for this tip. This already helped me on so many of my characters. Thank you so much🫶🏻

ayeee thxx

Thanks. Really cant tell the difference between the original and the decimated one.

-applied all subdivide modifiers -duplicated and decimated the collider by 0.05 ratio (apply it) -deleted all other effectors besides gravity, and lowered gravity to 0,1 -speed multiplier up -deleted hidden physics objects backups (no clue if affects, probably does)