Windows 10: audio dropouts on multi-core CPU setups

I’ve recently built out the following system:

Proc: Intel Core i9-7900X Skylake X 10-Core
Motherboard: ASROCK X299 Taichi
Ram: CORSAIR Vengeance LPX 32GB (4 x 8GB) DDR4 2666
Cooler: Noctua NH-D15
OS Drive: SAMSUNG 960 PRO M.2 512GB NVMe
Media Drive: SAMSUNG 960 PRO M.2 1TB NVMe
Samples Drive: SAMSUNG 960 PRO M.2 2TB NVMe
Video Card: Gigabyte GeForce GT 1030 2GB Silent Low Profile
Screen: LG - 34UC79G-B 34.0" 2560x1080
Case: be quiet! PURE BASE 600 - Black
Power Supply: be quiet! - Dark Power Pro 11 650W 80+ Platinum
Software: Cubase Pro 9.5, Native Instruments Komplete 11 Ultimate
Audio Interface: RME Fireface UFX+

On initial setup, the Cubase 9.5 demo song was playing with no issues and plenty of headroom down to a buffer of 32 samples. Recording, however, was not working down to 32 samples. Cracks, dropouts, etc. I didn’t change anything else (HT still on) and dropped in the audioengine.properties file with no changes. With that change, recording with a 32 sample buffer was fine. A 64 sample buffer didn’t bother me and I did a jam session with Guitar Rig for over an hour without a single hiccup.

This is going to be a great system, I think!