When configuring new DAWs, we do tweak the BIOS/OS.
A lot of this is shutting down power-management or options for the OS to throttle speed.
Generally speaking, you don't want apps running in the background that aren't necessary... and you don't want the system managing tasks (scheduling/etc) that aren't 100% necessary.
ie: Don't have backup software running on a schedule in the background.
When it's time to backup, start the process manually.
If your BIOS exposes them, there are settings that can affect DPC latency.
Graphics drivers often cause high DPC latency (as does WiFi).
If you're having DPC latency issues, disabling services likely won't resolve the issue.
In many cases, there's no solution to higher DPC latency other than to replace hardware.
ie: Tried moving my GTX-560Ti to my new DAW... but the driver caused major DPC latency spikes.
Replaced with a 660Ti and the problem was solved.
Regarding services, on a current generation build, you'll see virtually no performance gain by randomly shutting down what seem to be needless services.
Years back, I remember shutting down unnecessary services on a secondary DAW. Went to install a M-Audio Firewire audio interface (FW1814 I believe) and the unit would "install" but wouldn't work properly.
After hours of trouble-shooting, I realized that I had shut down "extraneous" services ~6 months prior (had completely forgotten about it). Turned on those services... and voila! The FW1814 worked fine.