Moezilla

ED are aware and working on it

Some things you could try:
 - disable hotplug devices in control settings, there are hotplug events in your log, including from your audio devices.
 - google how to turn off the power-saving features on your USB ports to prevent windows power management from putting them into low-power mode.
 - you have parked cores according to the log, you could try unparking them. there are free tools available online like Parkcontrol that can do this.

I understand that DCS ran well before this time but it could be that some normal Windows/Dell updates have made some changes that may also have impacted how well DCS runs.

One thing that sticks out is that your motherboard BIOS is 5 years old and there have been 15 full releases, and a beta from less than a month ago, since your installed version. Apart from CPU microcode optimisations, power management improvements, and better device compatibility, there have been 5 security issues patched that may or may not fall inside your use cases.

In Windows, it's probably worth doing some standard stuff if you haven't checked on them in a while: Windows Update, install latest AMD chipset drivers, ensure game mode and game bar are disabled.

Use Windows Key+Q to bring up the search bar and type: advanced Click View advanced system settings Click Settings... in the Performance section Click Change... in the Virtual Memory section Set your pagefile up similar to the screenshot, with your pagefile on your fast SSD drive, and no other pagefile on other drives.* Click Set each time after you make changes to a drive. Hit OK and reboot to allow the changes to take effect. * The drive needs to maintain 10% (at minimum) free space after this op.