Gigantic CPU Usage When the In-game App Loads

Intel i5-7600 3.5 GHz here I dont have memory and graphic card issues (8GB ram, Geforce GTX 1050), but when the game begins the app uses tons of CPU power and the game freezes for a few millisec. I think it's the temperature that makes it stop. My CPU temp goes near 70 when the game begins... Is there a way to handle CPU temperature going up too much? Any advice on solving this issue please? Thanks in advance.
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