I’ve never used one so I couldn’t say. It might help a little, but then your computer is just going to be a bit less bottlenecked and still hit the same temperature but running slightly faster.

Before you do anything more you need to check the actual temperatures you’re running at and see whether they’re a problem. If your computer is throttling (slowing itself down to stay cool) then it’s a problem. Laptops do often run hot so it could be completely normal. It depends how hot.