i7-9750 +2070 means it will run HOT under load, but it shouldn't reach 100C
IF you know what you're doing: repaste your laptop yourself, pcs allows this.
Otherwise contact pcs, let them repaste it and test for throttling
No undervolt, Gaming mode, high performance, with fan boost on
CPU yields thermal throttling in HWinfo it averages 60C but hits 96C
GPU performance limit - power and max operating voltage averages 54C but hits 60C