@ae9c8437 Prove - I did that for every web-experiment:

https://danilw.itch.io/godot-graphic-demo-3d?password=demo

https://danilw.itch.io/particle-game-demo - has lag on pressing right click when right bar is full - once lag - because I forgot to put this particles to loading process

https://danilw.itch.io/e-ani-webgl?password=doit - you see loading that count shaders - press mouse left/right to see particles - no lags

https://danilw.itch.io/particle-effects-godot3 - long loading because lots of shaders, rotate camera to see lots of particles and move thru door 

 @d683d6cc @ae9c8437 I just did a jam game in godot4 where there was a big spike the first time you place an object with a particle effect, and I think that was this bug too. It might just be web exports that are hit 

 @e83a408b oh yeah web is weird in 4 haha.

Iirc Juan said it will he fixed in 4.1 or 4.2 (will try it out when the beta is out or rc)

Anyway I‘m happy that I don’t have that problem anymore. 🙏