Performance issues out of nowhere?

I've run the game fine for 100 hours. I've spent plenty of time in Veilwater during that, with barely any FPS loss. No real issues anywhere. Barely any lags or stuttering. Very fast load times.

Then a couple of days ago, I had a graphical bug where enemy corpses stopped showing up. I could interact with them if I found them, but there was zero visual until the "loot/search" prompt came up. I finished the dungeon I was in, restarted from desktop and that was fixed.

Then I had a bug yesterday where I couldn't interact with loot. I could use grapple points, but not loot enemies or open chests. Hard reset again fixed it. Shortly after that hard reset, the art asset for drops stopped showing up. Like, I opened a shell, and it said it had pearls, but the graphics for the pearl item was just the gray background. No pearl shown. I opened my inventory and nothing had an icon. Just backgrounds and quantities. I tried to teleport to my base before I reset the game, and... Blue screen of death. Unexpected Store Exception. So I checked to see if my drivers were out of date, and yep. They were like a month old, and Enshrouded was running fine on them up to the described issues.

I updated my drivers to be current and now the game runs like complete dogshit while on the performance settings. Very slow load times, stuttering, low FPS, the works. Task manager says the game is using 0% of my GPU, CPU usage is about 50ish% while running around Veilwater, which is pretty standard from what I've seen when playing. It has been running fine, even after the last update, then it had some issues, blue screened me, and now after updating drivers it runs terribly. Any ideas?