MAKEOUTHILL :
clutchc :
I'm assuming this is your board:
https://us.msi.com/Motherboard/A68HM-E33-V2.html#hero-overview
It isn't exactly designed for heavy OC'ing, so go easy. Maybe stay with multiplier increases alone. Don't increase the voltage when the multi increases become unstable. Live with what you can get on the multi alone.
Any OC'ing you can do will help to some extent, but the GTX 750 Ti is still a rather weak card by today's standards. So you may not see a major improvement.
so would overclocking my graphics card be a better choice here ?
truly i just play league of legends and im looking for a more stable fps
If your games are CPU-limited and/or if online gaming* is where you are hurting, the APU OC would be better. If the games are GPU-limited, then the GPU OC would be preferred. But if you are not satisfied with the graphics performance you are getting in-game now, you might want to save up for a better gfx card instead.
* Online gaming on a busy server is always harder on the CPU than playing alone in single-player mode.