{
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  "path": "/forum/macos-mac-apps/lagginess-numbers-version-15-running-under-tahoe",
  "publishedAt": "2026-06-30T00:59:07.000Z",
  "site": "https://applevis.com",
  "textContent": "I just retired my 2015 MacBook Pro, after 10 years, due to serious battery issues, and just bought a 2026 M5 MacBook Air, so I just transitioned straight from Big Sir to Tahoe. Running under Big Sir, I was stuck at Numbers version 12. When I got my new MacBook, it had Numbers version 14 installed and I updated to version 15. In both versions 14 and 15, when editing large Numbers files, when I enter data into a cell, I will often get \"Numbers not responding\" for a few seconds, before the data actually begins to appear in the cell. I don't know if this is an issue with Tahoe or if it's because I'm now using a newer version of Numbers. This did not happen with Numbers 12 running under Big Sir, when working on the same files. My M5 Mac should be much faster, which generally it is, so this new lagginess in Numbers makes no sense. Any suggestions concerning this would be appreciated.",
  "title": "Lagginess With Numbers Version 15 Running Under Tahoe"
}