After a minute or so in Dalaran, I get an error and crash.

Just as the title says, whenever I enter Dalaran for a minute or so (no matter which way I enter), I get an error and the game crashes, in my experience this happens in no other location, and I have no idea what it might be. I've tried clearing my cache folder, I've uninstalled and reinstalled all my addons, and it still happens. When I attempt to log back in, the first 3 times i attempt to, it says "A character with that name already exists".

many players use this: https://www.techpowerup.com/forums/t...-aware.112556/

it allows to use more RAM for a specific .exe
use it for wow

Appreciate the recommendation, and I'll keep it in mind, but a friend helped me troubleshoot and we were able to pinpoint the problem, actually ended up being the Questhelper addon. For some reason it was limiting me to 30fps and making strange amounts of memory demands.