You can't overclock on any i3, or any mobile processors.
Intel won't let you
Even if it was possible you would run in to ridiculous thermal buildup, and dangerously high temps
If you have a 1-2ghz i3, unfortunately that's all it can be.
Although the real limiting factor to playing games is the graphics, a gtx 710m has 96graphics cores. A 770 (a good card for modern gaming) has 1536 cores.
Laptops were never meant for gaming above minecraft