Dell XPS 15 9550 Power Limit Throttling

Hello,

I seem to be having Power Limit Throttling issues when gaming. I've used XTU to monitor my laptop and I've noticed that while gaming when the Package Temperature reaches 79C in particular, my gaming performance drops drastically. In XTU, I can see the Power Limit Throttling up at 100% and my Core Frequency down to 0.80 GHz. I have tried to address this problem once before by following what someone wrote down on the dell forums which seem to help a little, but the problem is still there and I could not find any answers regarding this matter there. In the latop's power settings, I've set the Minimum Processor State to 5% and the Maximum to 80% (By default they were both 100%). I have also tried undervolting to -145 through XTU after reading through some of the threads here. After undervolting, I am getting lower temperatures, but still getting the throttles.

I am using a Dell XPS 15 9550 (Core i7-6700 2.60GHZ, 16GB RAM, GTX 960m 2GB RAM, 512GB SSD).

Thank you for your help.

EDIT: I have tested these changes for 1 month now and I am no longer having throttling issues while gaming. I've undervolted the CPU using Throttlestop by -140mv. The Min & Max Processor State in Advanced Power Settings are at 5% & 80% respectively. As of now while gaming (Starwars BF at 1080p - Medium Settings - 100% Resolution Scale), I can see Max CPU Temp: ~75c and Max GPU: Temp ~83c. But no throttling after 1 month UV with TS.

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Dell XPS 15 9550 Power Limit Throttling