Lags then crashes minutes after start

I’ve noticed, once i open Unreal, at first it seems to work perfectly, then after a minute, or if I start to open settings, blueprints, etc., the entire UI starts to lag a lot and eventually crashes. I’ve been looking around for answers, but can’t find anything. I have a laptop, but it’s a pretty decent one, and I’ve seen others use much worst and say it works fine.
Thank you ^u^

Processor : Intel(R) Core™ i7-4720HQ CPU @ 2.60GHz
GPU : AMD Radeon R9 M200X Series 2GB
RAM: 16 GB
Operating System: Microsoft Windows 10 (build 16299), 64-bit