I currently have AMD APU and a gtx 760. Do I need to uninstall the GPS drivers from the APU? Because I'm not getting a lot of frames than the expected gtx 760. I have already installed nvidia drivers
Probably not. You should also take into account that you might need one of the old drivers abd deleting them will leave you with a GPU that doesn't do it's job. Perhaps you can buy a GPU and crossfire with the APU! Just a suggestion