Same thing for me dude, stuck with it sinces weeks. Happened long after i installed my mods so pretty sure its not coming from there and you got no mods aswell... how much RAM do you have? Playing on a SSD ? and processor ?
To both you and OP:
Enter EFT settings, go to game tab and change notification type to default (instead of websocket)
This should solve the issue.
Let me know if it does not.
Just a few of the 327 users online
