Gaming Notebooks

I've had this HP Victus 16 laptop for about six months now, with this issue occurring right from the start. While running any game, whether its graphics-intensive or not, the laptop freezes up for about 5-6 seconds, humming louder than usual as though it were struggling to process while doing so. Often the sound will glitch, repeating whatever music or noises are playing in a couple-seconds loop until the laptop unfreezes. It will do these freezing episodes sporadically during most games, maybe every 5-10 minutes, though certain things seem to trigger it with more certainty, namely when some graphical element occurs such as a grenade going off in XCOM 2 or a car crash in Beam . ng, or when an input is entered that would cause a sound effect or dialogue to occur.

Things I've tried:

1. Ran windows memory diagnostic, which showed no problems
2. Upgraded from 16 to 32g RAM with only maybe some slight improvements to the issue
3. Updated/Reinstalled graphics drivers
4. Restored system to factory default
5. Checked internal temps both idle and under strain 

I also took the laptop back into the Microcenter I bought it from, but they weren't able to diagnose any problem and thus any further looking into the issue wasn't covered under warranty (which since then has expired).