I don't think it's the FPS cos I use Vsync and it's locked to 60 FPS.

I have my GPU overclocked it is a GTX 650ti boost (2GB) and I have the voltage set to +87, +75 Core Clock and +150 on the memory clock, it runs pretty much every other game I play fine without crashes but overwatch doesn't seem to like to run it whilst overclocked, it's become a bit frustrating and I was wondering if there was a way to keep it from doing this or if I actually just cannot play this game with my GPU overclocked at all.

Just updated to Windows 10 Pro (64-bit) and now the game lags like hell and my gpu stays at 100% usage, same settings as I used before on Windows 7. I did update my graphics drivers before and all so I have no idea why it's doing this. Here is a screencap of the main menu with stats in the top left displaying the issue.https://cdn.discordapp.com/attachments/177481764778803201/396791770286915597/unknown.png