Same project, but overload in Nuendo 14

Hi,
Does anyone encounter the problem with CPU overload easily in Nuendo 14?
I was working on a project with some plugins on channels, including heavy altiverb 8 and everytime I played to the section with altiverb 8 on dialogue bus, it stucked and showed “CPU overload”. However, I switched the same project back to Nuendo 13, it was not overloaded. Please help!! I tried to change my buffer size higher than I usually do, it’s still not getting better.

I’m not getting overload messages but I am getting spikes and crackles on projects that do not have a lot going on in them. I imported a three minute 1080p .MOV file and went to play it down and got a lot of pops and clicks at 256ms buffer size; this would never happen with Nuendo 13 even on a very busy project. The CPU meter is only about 10% or so but spikes and overloads a lot.
macOS Sequoia most recent, Mac Studio M1 Ultra 128gb RAM, 2TB SSD.

I’ll add a plus 1. Nuendo 14 just ssems to be “lethargic” in many areas.

It would be great to get an update soon that helps with that and the issue with templates not showing up.

I had to go back to N13, N14 seem to have some sluggish issues on the larger projects