Frame rate vs frame pacing
Frame rate is how many frames per second your game renders on average. Frame pacing is how evenly spaced those frames are. You can average 60 FPS while still having visible stutter — if most frames take 14ms but some take 35ms, the game will hitch even though the average looks fine.
Tower of Hell is nearly always a frame pacing problem rather than a low-FPS problem. The map is simple and the player count is low. Most hardware can render it above 60 FPS. But background processes, power management, and Windows scheduling introduce irregular frame times that cause the game to briefly freeze at exactly the wrong moment.
The main cause: power plan throttling
When Windows Balanced power plan detects a brief moment of low CPU activity, it reduces the clock speed. Roblox's game loop then hits that moment of reduced speed and the next frame takes longer to produce. The result is a hitch every few seconds — even on hardware that should handle the game easily.
Set your power plan to High Performance. Press Win+R, type powercfg.cpl, press Enter, select High Performance. This keeps your CPU at a constant clock speed and eliminates most of the frame pacing variation.
Disable fullscreen optimizations
Windows fullscreen optimizations interfere with the game's exclusive access to the display output. This introduces irregular frame delivery even when FPS looks stable. Disabling it improves frame consistency.
Press Win+R, type %localappdata%\Roblox\Versions, press Enter. Open the newest version folder. Right-click RobloxPlayerBeta.exe, Properties, Compatibility, check "Disable fullscreen optimizations". OK.
Close background apps
Background apps do not just use CPU — they interrupt the CPU scheduler, which is what introduces the irregular spikes. Windows has to stop what Roblox is doing, process a browser notification or Discord update, and then return. That interruption shows up as a frame hitch.
Close Discord before playing Tower of Hell. Close your browser. Press Ctrl+Shift+Esc and close anything you do not need.
Graphics settings
Tower of Hell's maps are simple geometry. Graphics Quality does not significantly affect frame pacing, but keeping it at a stable level prevents the game from dynamically adjusting during play, which itself introduces variation.
Set it manually and leave it. Automatic mode makes adjustments that change frame timing mid-game.
What to expect
If you are on integrated graphics and genuinely getting low FPS (under 30), run the general checklist first. Tower of Hell should be achievable at 45+ FPS on most integrated graphics once power settings are correct.
If your FPS already shows 60 but the game still stutters, the power plan fix and the fullscreen optimizations disable are your primary targets. Apply them, restart Roblox, and test on the same section of tower where you noticed the stutter.