Woke up to my computer running sluggish

I’m running an i5-8400 with a 1660 Ti slightly overclocked.

I have windows on my M.2 SSD along with Assassin’s Creed Odyssey. First off, the game took forever to boot up. Then when I finally got in the game, I was running 10 FPS instead of my usual 80-100+. I haven’t been home in over a week but it was running fine when I left and suddenly it runs like garbage. I do have other people that hop on but they don’t really play any games outside of games from the early 2000’s. I did some test with OCCT and Crystal Disk Mark and everything appears to be fine.

I knew there was a problem almost immediately. Windows took more than 20 seconds to boot up. I disabled nearly every startup program a long time ago. But it felt like I was running on a HDD again with the boot time and load time for Assassin’s Creed. I have no idea what’s going on. I can usually figure these things out but I’m at a loss here. The only thing I did recently was install a 2TB FireCuda hybrid SATA drive. But I don’t have any files or games on it. So that can’t be the issue here right?

And I moved AC from an external hard drive to my M.2 and now it’s taking forever to load..? That seems arse backwards to me.