Dell Precision M4800 overheating

I have a Dell precision M4800 with a Intel(R) Core(TM) i7-4910MQ processor. The cpu reaches really high temps when I am playing CS GO. Here is a core Temp screenshot I took while playing. Max Core2 temperature was 97C and tj.max temperature is 100C. I have replaced the thermal paste once after I bought it but it was a year ago and I regularly clean the vents so it can't be dust buildup. How do I overcome this overheating issue?