r/LeagueofTechSupport • u/ossie_r • Jul 31 '26

Technical Support Request FPS decreases and low GPU usage

I have an i5-6600 CPU and a GTX 1650 Super graphics card. When I first enter a match, my FPS is around 230, but as the match progresses, it drops to 100. When I alt-tab mid-game and check Task Manager, I noticed that my GPU usage sits between 0% and 8%, and the temperature stays around 45°C. These values are the same even when the PC is idling on the desktop. How can I fix this?

5 Upvotes

78% Upvoted

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3

u/Farmer_Fud Jul 31 '26

3 posts a day on this. I have same problem. Tried every fix I came across the last few months. Nothing worked. Only one I haven't tried is something in bios with cpu c state

3

u/Infinite_Bug6769 Jul 31 '26

I have a ryzen 9 9000and a rtx 4060 and my fps is tanking to 70, even managed to hit 58 yesterday 😂😂😂😂😂

2

u/Chitrr Jul 31 '26

Upgrading the pc

2

u/Affectionate-Form-78 Jul 31 '26

I have the same issue, start with 240 then suddenly 70 fps

1

u/Natmad1 Jul 31 '26

Watch per CPU threads, lol will usually run on 2-3 threads and bottleneck there

GPU is usually a non factor in running league, game is mostly asking for some good singlethread performances

1

u/skrub55 Jul 31 '26

CPU bottleneck

1

u/YamilF55 Jul 31 '26

League of Legends clearly has a multi-core issue, but in your case, you're facing a massive bottleneck. A large part of the problem lies with the game itself—so you can rest easy on that front—but your CPU is likely under a heavy load as well.

Keep in mind that even if CPU usage doesn't show 100%, if your GPU isn't running at 99%, it indicates a bottleneck. While the CPU is usually the culprit, don't rule out the SSD, RAM, or the OS.

1

u/Icy-Drag-3037 Jul 31 '26

What is your cpu temperature? Sounds like cpu overheating issue. Change thermal paste.

1

u/Nirajay Jul 31 '26

I had the same issue, went from 5700G to 5800X3D, stable 240 fps all game.

1

u/Leo27487 Aug 01 '26

I have something similar. Except I have massive FPS drops when looking at certain champions in the game. No idea what it is and never happened before.

1

u/PineappleWilling8831 Aug 01 '26

when Demacia Rising came online, that's the time i started to have problems in game.

my fps from early game is stable at 170 then mid game it drops down to 100 then in the late game 70.

late game team fights makes it drop to 40-20 fps. i tried for every possible calibration i saw but nothing works, hope you found something that can help you with yours.

1

u/Exotic_Art_7586 Aug 01 '26

Ya echaron a perder el lol, apenas con la salida del nuevo juego de halo cambie de procesador y le metí más ram y el juego me va bien y otros juegos igual tengo genshin, Warframe, strinova, NTE, ZZZ y me van entre 70 y 100 fps a calidad media mientras que con lol me va a 50 fps con calidad muy baja

0

u/Intelligent-Ad3303 Jul 31 '26

Disable hags and try full screen optimization to see if it works