Re: Sims 4 super laggy and glitchy
@Crazy_PandaLadye As a test, please move your Sims 4 game folder out of Documents\Electronic Arts and onto your desktop. When you launch the game, a clean folder will spawn with no content. (Your saves and other content will be intact in your old folder but temporarily not read by the game.) Don't add anything to this new folder yet; just test a new save and see how it runs. Let me know either way.
If the game still glitches and lags in the clean folder, please run a dxdiag and attach it to a post.
https://help.ea.com/en-us/help/pc/how-to-gather-dxdiag-information/