in my one preset that can jump up to 82%,
At that CPU you wouldn't notice a difference. As you exceed 85-90% resources start to become critical. That 10-15% has to get divided up among all the lower priority threads: USB, display, controllers, foot controller(s), LED, etc., etc. as well as pitch detection. Pitch detection is a higher priority thread but you can't get blood from a stone.
Very aware that’s why my tuner gets weird. It’s a kitchen sink preset, that only hits that when I use a specific reverb and both drive blocks. It’s all good below 80%, but I wonder if that is the original problem in this threadThe manual says don’t go over 80%. I suspect that pushing the CPU % is affecting the tuner reliability.
A few firmware updates back changes were made to improve the tuner’s stability. It might be more sensitive to pushing the CPU now.
Try switching to the first factory preset, or an empty preset, and see what happens when comparing the tuners.
It's difficult to tell. The OP doesn't really tell us enough.Very aware that’s why my tuner gets weird. It’s a kitchen sink preset, that only hits that when I use a specific reverb and both drive blocks. It’s all good below 80%, but I wonder if that is the original problem in this thread