Changing each clients profile to DX11, not legacy, in the toolkit seems to have resolved the issue. Classic issue went away as well, no idea why because I didn't change those profiles. Either way, Thanks a ton for pointing me in the right direction MiRai !!

Tin, I do actually see some performance improvement in heavily crowded areas running separate stored clients. My presumption why is the client still needs to load rendering data from the drives and interactions/movements are all handled server side. By separating the rendering data for each client, the less lag I get, especially in traditionally laggy areas like Dalaran, Org, etc. The updates for the game and add-ons can be a tad tedious but I'm used to it. Addons don't take long with Twitch/Minion.

Thank again!