2 second pauses at seemingly random times

So I did a custom build, Intel 12900k, 64GB Ram (albeit 3600), and Nividia 3080. Windows 11 on a Firecuda 520 1TB drive. Ultra settings mostly. running in game optimized mode (perf cpus only)

At times on the ground taxiing, or in the air, at random (seemingly) points, the sim seems to “pause” rendering for 2 or so seconds.

Using task manager, I notice at that same that it appears the GPU and one of the CPUs drops to 0 utilization.

I’ve experienced this in the CRJ 700, but also in the stock 172s.

Does anyone have ideas on what I can try without lowering my display settings?