I tested Windows 10 1909 that has the 10 MHz QPC, latency measurement with Latencymon was as low, if not lower than 1803 with some tweaks I do. Very good in the regard, but the system felt "muddy", like most of the stuff I did had an small delay to respond, fast, sure, but not as snappy as 1709 and 1803 versions are. Even with Spectre&Meltdown disabled, the 10 MHz QPC will remain, there is no way to change it. Speaking in general terms, it won't affect the normal user because not everyone can notice these changes as some of us do, gaming felt the same, no difference that I can remember. I decided to go back to 1803 and everything feels ok, its a bit snappier. When Windows 2004 comes out, I will try it, it promises a lot, but we'll have to see. Just stay on any version you have, don't rollback, try to tweak it as much as possible, fr33thy guides are ok, even so he doesn't explain certain things, some of that stuff just works. Keep drivers up to date, use DDU in case you think your GPU driver its giving you issues and install the newest one. ISLC is not needed anymore imo, but if you use Windows Defender, disable all ASLR security layers if you feel your games have some problems. You won't get hacked or anything by disabling this, don't worry. Remember MSI modes (guide from mbk1969) here: https://forums.guru3d.com/threads/w...ge-signaled-based-interrupts-msi-tool.378044/ Set affinities: Try using Park Control, great tool: https://bitsum.com/product-update/parkcontrol-v1-0-3-0-released/ Disable Windows spying "features": https://www.oo-software.com/en/shutup10 Optimize the visual effects to minimize system lag due to the graphics interface. Google Windows 10 unneeded services and disabling them slowly, check what they are for and if you don't need it, disable, then try your system and so forth. Generally, this is to lower latency a bit and RAM usage at idle. DO SYSTEM RESTORE POINTS BEFORE DISABLING WINDOWS SERVICES because if your Windows stops booting, you will be able to recover. If not, you will have to reinstall.