Corsair Vengeance RGB PRO DDR4 3200 C16 2x8GB-$150
199,434 User benchmarks, average bench 85%
2 of 4 slots used
16GB DIMM DDR4 clocked @ 2133 MHz
Start by going in your BIOS and turn the DOCP profile on. You're using a Ryzen 2700X with RAM clocked at 2133MHz at the moment. That's performance lost.
AMD Ryzen 7 2700X-$425
424,174 User benchmarks, average bench 82%
AM4, 1 CPU, 4 cores, 8 threads
Base clock 3.7 GHz, turbo 4.1 GHz (avg)
4 Cores 8 Threads? Should be 8 Cores 16 threads.
Type msconfig in the windows search bar. Go to the boot tab. Go to the advanced options. Make sure the box for the number of processor is not checked. If it was, uncheck that box and reboot.
Another thing from the userbenchmark page.
From that date and the BIOS page from the motherboard website I can assume it's BIOS version 2901 2019/11/06. There are 4 more BIOS update after your version if it's 2901 you're on right now. Might want to update this as a last resort.
Was the Chipset drivers installed on that OS?