Display Related Driver Issues

[HT1318]

I have a HP ENVY x360 2-in-1 Laptop 15-ew0xxx, product #: 549V1AV, that seems to be having driver issues relating to user interfaces. After starting up the computer or using it shortly after using it after it's been sleeping, there is roughly a 10 minute period of time (frozen moments last between 10 to 30 seconds each), where the user interface for any software, including Windows start or internet browsers, can have it's display freeze up while I can still interact with them. My overall screen doesn't freeze, I can still minimize applications and move my mouse. Mouse and keyboard inputs still go through while the display freezes up. Audio will also continue playing.

Every once in a while, windows will crash due to driver issues (though this might be a seperate driver issue). The most common error code by far is driver_irql_not_less_or_equal. I suspect the same malfunctioning driver is causing this.

These issues started after I had HP repair my laptop for a shattered screen in November, but there were issues with the serial # for some reason and it got lost for a few months until I got my PC back in Feburary. I suspect that the repair people might have installed a wrong driver due to mix up with the serial #. Already, got a full refund for their mess up, but I want to fix this annoying issue. I don't have really have to the time to have my PC sent to a repair place for someone to fix this. 

Anyone have an idea for what driver is causing this issue?