Opening a new file is slow with cursor

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3

Hey, thanks for the report. I’ll need a bit more info to debug:

  1. Cursor version (Help > About Cursor > Copy)
  2. OS (Windows/Mac/Linux and version)
  3. What extensions do you have installed?
  4. Try running cursor --disable-extensions from the command line. Does the lag still happen?
  5. Open Process Explorer (CMD/CTRL + Shift + P > Developer: Open Process Explorer). Which processes spike CPU when you open a file?

Also try:

  • Cursor Settings > Network > Run Diagnostics, then share the results
  • Settings > Application > Experimental > Extension Monitor Enabled, then CMD/CTRL + Shift + P > Developer: Open Extension Monitor. It might be a specific extension slowing things down

Based on similar threads (Another lag-victim / CPU 90-100%), these often help:

  • Disable HTTP/2: App Settings CTRL/CMD + , > search “HTTP/2” > enable “Disable HTTP/2”, then restart
  • Check VPN/proxy settings if you use them

Let me know what you find and we’ll dig in.