Apple iPad 2019 9.7 iOS 14 app crash

Hello sir.

I don’t know what the reason. Is it due to software update or what .. recently last 6 months my iPad 2018 9.7 app are crashing continuously.

recently while playing PUBG , app crashes more than 5 times in 30 min .

wirh Other app like Alibaba.com,ali supplier still the problem is same .. app keep on crashing. I restore my iPad . I tried factory reset. Still apps are crashing. What is the best solution by apple communities please suggest.