Gaming laptop slow

Jun 11, 2018
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I got a HP omen gaming laptop 6 moths ago and it was working well until yesterday. It seems quite slow compared to how it was a few days ago. For example I cod watch YouTube videos on 1080p no problem before, but now the laptop is struggling on 480p. Also games that I usually get 100 fps on have gone down to about 60 fps and every few minutes there'll be a sudden drop in frame rate for a few seconds and then it will return to normal. I've updated all my drivers as well as the recommended update from the HP assistant program, yet my laptop didn't improve.

Thanks in advance.