Huge FPS drops and game freezes

I've had this laptop for 8 months and played WoW very smoothly until recently. My game has started to be extremely slow, FPS dropping to 2-4 or even freezing completely, not responding. Usually when I am in crowded capitals, or flying in Northrend, sometimes even on boss pulls.
I have NEVER had anything like this, even played with 2 clients open without any FPS lags, until roughly a month ago (give or take a week). I tried googling and tried every solution I could do (I am not great with computers just know the basics), like updating drivers, rolling back drivers, anti-viruses, messing with GPU settings... and nothing seems to work.

These are my specs (if it means anything)
Intel core i5-7200 @2.5 GHz
Nvidia Gforce 940MX
8 GB RAM

I'd appreciate if someone could help.

Try Large Address Aware

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Originally Posted by OhieMitzen

Try Large Address Aware

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Downloaded it, it didn't fix it.

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Originally Posted by Hrk4o

Downloaded it, it didn't fix it.

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It's good to keep anyway.

Running with bunch of AddOns?

No I don't have many addons, and I haven't installed new ones in 3-4 months. I don't recall installing ANY new program at all on my computer for a while in fact.

Still having these issues, can someone please help?