Since the new client, I have huge lag spikes playing LoL. The weird thing is that I only got those spikes in Champion Selection.

It take ages to pick the champion I want to ban, ages to pick the champion I want to play. Sometimes I can't even change my masteries, my runes and the spells due to this lag.

If me and another player want to ban a champion, but he does it first, due to this huge lag spikes I don't have time to ban another champion and that results in dodging queue. It looks like the game freezes only in champion selection.

UPDATE: This happens to me too in the score's board after the game. It takes me ages to get the new honor page and then more a huge of time to get to the score's board

Is there any way to fix this huge lag spikes besides buying a new PC? I read in Riot's boards to change to legacy client, but those threads were old and nowadays there is no legacy client.

  • There is a checkbox to ignore the banning phase. So if you see that someone picked the same champ you wanted to ban and you'll get a queue dodge, immediately select it
    – T J
    Jul 11, 2017 at 8:21
  • the problem is: sometimes when I see that the champ is already banned is too late to pick another one. but I ll try that Jul 11, 2017 at 13:04

1 Answer 1


Have you tried enabling "Low Spec Mode"? You can enable this in the client settings box. You can also try this fix that someone suggested on the forums (Source)

Task Manager

  1. Open Task Manager
  2. Right Click these programs

    • LeagueClient.exe
    • LeagueClientUx.exe
    • LeagueClientUxRender.exe
    • LeagueClientUxREnder.exe

Change Affinity to only CPU1 and CPU2

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