Nostalrius Begins - Quality wow vanilla realm (1.12)

Hey guys i have a huge problem my game freezes up at about 10 minutes of gametime making it unplayable i have to restart my PC each time it happens, i tried reinstalling 2 times, i can run Skyrim on ultra and nothing happens so i don't think its a specs related issue its a newer PC.

Help! Thanks.

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I am having the same issue, especially around water. Any help would be greatly appreciated!