Why this game punishes stutter more than most
In a fixed-speed obby like Tower of Hell, a short frame hitch costs a roughly constant amount of position error no matter when it happens. Here, your speed compounds with every successful step, so the exact same hitch covers more ground the longer your run has gone — a stutter thirty seconds into a run is more likely to end it than the same stutter at the start.
Servers cap at 22 players, which is small. This points away from a crowded-server problem and toward local frame pacing — the same category of fix as Tower of Hell, just with higher stakes as a run goes on.
Power plan: the main fix
Windows' Balanced power plan lets your CPU clock speed dip during brief lulls, then ramp back up. Roblox's game loop can catch that ramp-up mid-frame, producing a short hitch at an unpredictable moment — exactly the kind of moment that ends a high-speed run here.
Set your power plan to High Performance. Press Win+R, type powercfg.cpl, press Enter, select High Performance. This keeps your CPU clock constant and removes most of that variation.
Disable fullscreen optimizations
Windows fullscreen optimizations interfere with the game's exclusive access to the display output, adding irregular frame delivery even when your FPS counter looks stable. Press Win+R, type %localappdata%\Roblox\Versions, press Enter. Open the newest version folder, right-click RobloxPlayerBeta.exe, Properties, Compatibility, check "Disable fullscreen optimizations".
Graphics settings
Set Graphics Mode to Manual rather than Automatic. Automatic mode can raise or lower quality mid-run based on recent performance — a quality change in the middle of a high-speed run introduces exactly the kind of frame-time variation you are trying to avoid. Pick a quality level and leave it fixed.
Close background apps
Close Discord and your browser before a serious attempt. Background apps interrupt the CPU scheduler, and at rising speed even a brief interruption is enough to misjudge the timing of a jump.
What to expect
The map geometry here is simple, similar to Tower of Hell, so most hardware can render it well above 60 FPS. If you are still seeing hitches after these changes and your FPS counter shows a stable number, the problem is frame pacing, not raw performance — the power plan and fullscreen optimizations fixes are the ones that matter most.