Same, with a GeForce RTX 3080.
I open a blank project and it says the editor has about ~30 fps, ~3,600 mb memory, and ~33,000 objects.
It runs like garbage in PIE and standalone if i look at the floor, but it runs smooth when I look up into the sky, so it must have something to do with the rendering.
It wasn’t doing this the whole time, I have been happily working on a small project and it has been fine, this issue has sprung up without me updating any engine/OS/drivers.
I’ve tried turning off lumen for Reflections and Dynamic Global Illumination and weirdly is started running even slower…