Further down you'll find the DPC-LatencyMon results of 3 Lenovo notebooks (from notebookcheck.com). All of those results are not bad. Looking closer, the drivers with the highest DPC-latency-values differ. Sometimes its the ntoskrnl.exe, sometimes its dxgkrnl.sys, or tcpip.sys / ndis.sys. Other relevant drivers are ACPI.sys and on the notebook with the nvidia-card dxgmms2.sys or afd.sys.

What I'd like to know: Which drivers are worst (can't be optimized by tweaking) and which drivers are not so relevant (or CAN be optimized by some tweaking)? Or is it all futile as any update might change all of it? Would like to know before deciding on which one to buy.

Any help appreciated.