ChatGPT typing lag in long chats — needs virtual scroll like, yesterday
OpenAI Developer Community
February 27, 2026
Hey @Garry_Cotton, yeah, this comes up a lot with longer threads.
Once conversations get large, the UI is still rendering the entire DOM tree, and that can definitely cause input lag over time. The idea of decoupling model context from what’s rendered in the UI is interesting. Being able to “collapse” or compress older parts of the chat while keeping the context intact would solve a lot of the friction without forcing people to start over.
Starting a new chat works technically, but like you said, rebuilding context isn’t always ideal.
Appreciate you spelling out the suggestion clearly, especially the virtual scroll / compression angle. That’s helpful feedback in a thread like this.
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