Water causing lag and graphical glitches

Just resurrecting this thread in hopes of a fix. I also have this issue in act 1 Mud flats, Brine King, Trinity fight, and some maps. 200+fps borderless window gameplay, drops to 1 in these locations and crashes 1 in 4 attempts. I understand that I can bypass the problem with full-screen, but this is not an acceptable long-term solution for players experiencing this problem. The initial Legion patch caused this issue and it has persisted the entire league. I play with all graphics settings on lowest possible on a 1080 ti. Let me know if any log files in particular could help to diagnose the problem, thanks.

just died at Brine King now. Screen were flickering when we first met with nessa under the water fall but at that time i thought problem was gpu. Today (just now) entered to Brine King's throne, faught legendary till his first phase and as soon as waves came in... 1 fps... i wasnt playing the for some time but it never happened on previous patches

haven't had much time to play this league myself, but this does not sound very promising hearing that people are still running into this issue.

I should make it to brine king tonight when I get to play, will update if I have the issue again as well.

This problem is still in game. Carcass map boss, Reef map boss, Brine king is unplayable.

Confirm still in games.


Thought it was caused by my old drivers (Nvidia last year). Updated them to the last version (August 2019), still the same issue.


(Playing on Windows fullscreen with 4k Desktop and 1920 x 1080 for the game). Switching regularily from Windows fullscreen to Fullscreen and returning to Windows fullscreen helps to avoid it.

managed to play Brine King fight by changing video settings to "fullscreen" with low on everything. Problem seems to be "windowed fullscreen" related

got through brine king, but having intermittent issues in the bridge encampment.

Still not fixed. What the fuck are you doing GGG? I cant move in twilight strand, reef is unplayable... How can you be so incompetent? You fuck up water graphic so hard people can't play the fucking game.

Has anyone gone back and checked brine king or other similar fights, since the performance update went live? If not, I'll check it out here in a few hours after work and report back.

I had the same issue, and the following solution fixed the stuttering:

I have a 21:9 monitor which has a default resolution of 2560*1080. After I switched to Windowed mode, the game changed my resolution automatically to 1920*1080, but the screen was fitting to my entire screen so I didn't realize it.

After I changed to 2560*1080 manually, the fps lag has disappeared and I continued my addiction of this breathtaking game.

I think the game force the optimal resolution somehow and it is really resource-intensive task even for a relatively high-end computer.