Fix Roblox Lag Forever: The ONLY 3 Tweaks You Need (2026)
In this video, I show you how to fix lag in Roblox once and for all — no gaming PC required. These 3 free Windows tweaks can boost your FPS by up to 70 and lower your ping and input delay.
CMD Command to Add Ultimate Performance Power Plan:
powercfg -duplicatescheme e9a42b02-d5df-448d-aa00-03f14749eb61
Steps covered in this video:
1️⃣ Enable Ultimate Performance Power Plan (forces your PC to run at full throttle for max FPS)
2️⃣ Disable ALL startup apps in Task Manager (Ctrl + Shift + Esc → Startup tab → disable everything)
3️⃣ Disable Core Isolation (search "Core" → Core Isolation → turn off memory integrity)
⚠️ Disabling Core Isolation makes your PC slightly more vulnerable to malware. Only do this if you have good antivirus software and avoid clicking suspicious links.
Works on Windows 10 & Windows 11 — completely free, no downloads needed.
If this helped you, let me know your FPS before and after in the comments! I'm a small creator and a like + subscribe would mean a lot. Have an amazing day! 💙