Huge FPS drops every few seconds regardless of settings

Encendi

Distinguished
Oct 30, 2011
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I've been trying to play Oblivion on my Lenovo y410p. Ordinarily I'd be using the GTX 750m but the dedicated graphics died on me and it costs too much to fix.

Specs:
i7 4700MQ
8 GB RAM
Intel HD Graphics 4600

So no matter what settings I put on Oblivion, the FPS will experience massive drops every couple of seconds. On high settings for example it will run ultra smooth for maybe 5 seconds and then it will start lagging like crazy. When I crank it to the absolute lowest it will run smooth for a little longer, but then it will experience the same lag.

I have a feeling this is due to temperatures and throttling although I'm not sure. Any thoughts?