bystander :
Your GPU usage went up based on what you said earlier, and even the FPS went up. It might not have been enough to get the FPS you wanted, but you did prove that the CPU is likely the cause. OCing won't magically fix your bottleneck. It'll just give you a little more performance. If you want dramatic improvements, you simply need a better system.
edit: forum is acting up right now.
edit: forum is acting up right now.
Yes GPU usage go up = more fps but it is only staying at 30% when playing league. Of course ocing would give more fps on any device whether bottleneck or not. My old card performed about the same, if not better playing LoL although not PUBG. That's why I find it very weird.