Any tips or options to add as a starting point?
On windows I use 75% powerlimit and low coreclock as possible on the 3080ti. No need to lock the clock.
If the card fail to unlock try with -1, -2, -3, -4 ... etc until it's stable.
--lhr-unlock [-1,-1,0,0,0,0]
On the Options page, the supported values for LHR-unlock is either 1 (Unlock Mode) or 0 (Normal Mode).
Should I try negative values this time?