Computer Peformance Issues when gaming. Is it due to overheating?

the max. temperature of intel core i7 processors (desktop ones) according to intel is 38 degrees C. the ambient temperature in the case should be about 10 degrees lower. if you want to cool it down more get an intake and exhaust fan, preferably putting the exhaust fan at the top of the case as the heat rises. if you already have case fans get a better CPU cooler