Hi, Its always worth refreshing your driver installation. Sometimes software can get corrupted over time. Unless its a hardware issue, which it could, be it wont damage anything. If it is a hardware issue well, then it's a sign of damage already done.
You'd need to find the latest driver that supports your card. It looks like your GTX 650 was supported up to 2019 so you'd need to find the last driver that will work with your card and download it direct from Nvidia here.
Advanced Driver Search official NVIDIA drivers
You can follow the instructions here to do a clean install and see if it helps with your problem. No need to worry about the BIOS update part for now though IMO.
There are a number of times where we see that the frames per second of our beloved game has dropped to the point that it's no longer tolerable. There can be a number of causes, but a common troubleshooting step is to check to see if there are any driver updates for your graphics card. Whether...
Hopefully that helps.