How Disable DPI Scaling (Fix Blurry 125% / 150% Windows Display) works in ClientAppSettings.json
Renders the Roblox viewport and UI at native 1:1 monitor pixels on 1440p and 4K laptops using Windows 125% or 150% scaling.
When you adjust **Engine Settings → Disable DPI scaling** inside Bloxstrap, the bootstrapper writes `FFlagDisableDPIScale` into `ClientSettings\ClientAppSettings.json` before `RobloxPlayerBeta.exe` initializes its renderer.
Recommended values and stability tips
- **Accepted values:** `True / False`. Stick to the built-in GUI preset under Engine Settings unless you are testing a specific JSON override.
- **Resetting:** If a custom value causes visual artifacts or a startup crash, use Reset FastFlags to default.
- **Installer:** Download the latest Windows build of Bloxstrap from /download.
Frequently asked questions
What FastFlag does "Disable DPI Scaling (Fix Blurry 125% / 150% Windows Display)" control?
It manages `FFlagDisableDPIScale` inside `ClientAppSettings.json`, accessible directly via **Engine Settings → Disable DPI scaling**.
Will this setting reset when Roblox updates?
No. Bloxstrap rewrites `ClientAppSettings.json` into the new Roblox version folder on every launch.