Remove the QoS bandwidth limit policy
Sets the QoS Packet Scheduler's reservable bandwidth policy to 0%.
Applying it needs Nexus Pro. Every plan can read it here and undo it in Restore Center. Compare plans
What it changes
HKLM\SOFTWARE\Policies\Microsoft\Windows\Psched\NonBestEffortLimit = 0
Before anything is written, the review screen shows this setting's current value on your PC next to the new one.
Why it helps
Makes sure no bandwidth is held back for QoS-tagged traffic.
Trade-offs
Windows does not actually reserve 20% unless an app requests QoS, so most PCs see no change.
Evidence
Limited evidence means: popular, but gains are rarely measurable. Expected impact is small (1 of 3): how much it can matter when this is actually the bottleneck on your PC, not a promised gain.
Gains from this tweak are rarely measurable on modern Windows, so it is never recommended or applied in bulk. If you try it, measure before and after with the Benchmark and keep it only if it helps.
Is it in a pack?
No. Packs never include tweaks with Limited evidence.
How to undo
Switch the tweak off in Nexus, or open Restore Center and restore this change (or choose Undo last change). Nexus writes back the original value it recorded before applying, not a generic default, then reads it back to confirm.
More in Latency
- Disable Nagle & delayed ACK (TCP)Sets TcpAckFrequency=1 and TCPNoDelay=1 on your active network adapter.SafePerformance
- Turn off network throttlingSets NetworkThrottlingIndex to off for the multimedia scheduler.SafePerformance
- Receive Segment Coalescing: offStops the network stack merging received packets.CautionPerformance
- ECN capability: offTurns off Explicit Congestion Notification.SafePerformance