Hey the answer seems to be DDC related.
r.VT.PoolSizeScale didnt do much but after playing with the cvars something reset the cache leading me to think its an DDC error.
I’ve switched DDC to a different drive and so far that seemed to have fixed it! (touch wood)
For anyone one else wanting to change VT DDC location look for [VirtualTextureChunkDDCCache] within BaseEngine.ini in the engine folder.
Thanks for getting me in the right direction!