I have tried just about every fix I can find. This is includes...
Setting compatibility to Windows 8
Turning Geforce Overlay on, and then off again.
Restarting my PC
Making sure I only have one folder for GTA
Launching Rage from troubleshooter
Turning off windows defender
The only thing I think I have left to do is to try reinstalling lspdfr and Rage. Before I do that though, if anyone has any fixes, please reply to them below. Even if your unsure still reply.
One small detail...
My graphics card is currently using a power supply that is just under what it "requires" although it's fine, because all the power from my PC that actually gets used at one time is still under the power supply. Anyway, I have no idea if this has anything to do with it, but I doubt it, because from my knowledge of computers I know that the power supply doesn't communicate with the actual PC, besides drawing power.
Anyway, this whole ordeal is driving me insane. It's the second problem I've had while installing lspdfr, and will hopefully be the last.