The ones that modify map or battle scenes are more likely. But it seems you have quite a few plugins so it is hard to tell. Can you make a small demo for me to test if possible?
Viewing post in Fix lag on close menu/See map thru menu comments
I'm unable to make a demo, but DKTools seems to be the main issue. I didn't edit the default parameters.
https://www.dropbox.com/scl/fi/vhtk0l9h8b8mlhfs786st/DKTools.js?rlkey=6ai4tenqf5...