Unplayable game

I've recently bought Icarus after having played it for the free weekend. The game ran perfectly normal until ~5 hours into the gameplay. I was playing with a friend who was hosting our world, and all of a sudden, my FPS fell from ~100 to 10. I thought it was low because it was loading a lot of things. It then jumped back to 100 and then after ~2 minutes, it fell back to 10 FPS, and this has been happening ever since. I tried lowering graphics to the lowest possible, nothing. Tuning back graphics to high with FSR on, nothing. I even tried reinstalling to NVMe instead of SSD, nothing. I cleared every possible file Icarus related, nothing. I even tried reinstalling new Windows, it worked for the first 30 minutes without any fps drops and then it happened again by dropping to 10... I have no idea what else to do. If anyone knows any other solution I'd appreciate it.

CPU: Ryzen 7 5800X
RAM: 16gb ddr4
GPU: RX 7600