Claude UI Performance Issues

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Monday, February 2, 2026

Users are reporting improved scrolling and reduced flashing in Claude, but are now experiencing significant lag when typing in the prompt input field, particularly after a response stream completes.

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@mrstern_stern

The scrolling is significantly better, almost no flashing issues but typing in the prompt input is now laggy, especially right after the response stream is finished. I'm getting more than 500ms delay when typing. Sequoia 15.7.3 Alacritty 0.16.1 Tmux 3.6a Claude Code 2.1.29

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