What the tweaks do
No black box. Here's what representative tweaks do, in plain words. Inside the app, every tweak shows the exact registry value, service or command it changes before you apply it, the app logs every action it takes, and behaviour-changing tweaks are off by default.
Performance
Stops the CPU down-clocking at idle.
Menus open instantly.
Cuts constant prefetch disk reads (recommended on SSDs).
Frees disk + CPU used by the indexer.
Privacy
Minimises diagnostic data sent to Microsoft.
Stops cross-app ad personalisation.
Stops Cortana running in the background.
Gaming
Prioritises the running game.
Hardware-accelerated GPU scheduling for lower latency.
Stops the background capture that costs FPS.
1:1 raw mouse movement for consistent aim.
Network
Removes the multimedia network throttle.
Allows the receive window to scale to full bandwidth.
System & Security
Removes hiberfil.sys and frees several GB.
Turns off the obsolete, exploited file-sharing protocol.
Reveals .exe/.scr so disguised files are obvious.
This is a representative sample. The app exposes all 295 tweaks with a one-line description each, and writes every change it makes to the on-screen activity log — so you always have the full, exact record.