F9 as recording key lags more than F12?

So I'm using a program called Mirillis Action! to record league of legends. I used to have my record key on f12, but that was the screenshot key on league of legends(which is unchangeable), which made the fps drop hard every time I started recording. It got annoying, so I switched over my recording key to f9, and now for some reason the game gets fps drops. It happens rarely, but it really messes me up. If it happens during a key moment during the game, we lose. Currently, there is nothing bound to f9 in league(I changed the screen lock/red border thing to f12). Usually, when I record with f12, the fps doesnt drop, but now when I record with f9 it does. Strange.

Sounds like F9 is being used by something else, too.

I'd bring up Task Manager (CTRL+SHIFT+ESC) and see if anything else spikes the CPU on the processes tab when you hit F9.

I think F9 is a default key for something with FRAPS for example.

Faladu said:

Sounds like F9 is being used by something else, too.

I'd bring up Task Manager (CTRL+SHIFT+ESC) and see if anything else spikes the CPU on the processes tab when you hit F9.

I think F9 is a default key for something with FRAPS for example.

Thanks! I didn't think of using Task Manager before, turns our it was a key in another software that recorded benchmarks or something.