Lag when selecting curves

Rhino Rhino for Mac
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There is a significant lag (sometimes up to 30 seconds) when selecting complex curves. When I explode the curves or create a planar surface, the lag goes away completely. Running Rhino 5 on MacOS Monterey. Anybody experiencing the same issue? Any help would be appreciated!

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Hello- if you start a new file and make some new curves, does the problem exist?

-Pascal

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Hey @joshuakirsch,

The version of macOS recommended for Rhino 5 were:

  • macOS 10.14.6 (Mojave)
  • macOS 10.13.6 (High Sierra)

Monterey is pretty new, which doesn’t bode well for Rhino 5.

Are you using an Intel-based Mac, or a Silicon-based Mac?

– Dale

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Hi Dale,

I’m on a 2015 Intel iMac.

Yeah I know Rhino 5 is gonna be pretty out of date… although outside of this one issue, I’m really happy not to upgrade

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Hi Pascal,

Correct. The issue persists across all files and has for some time now.

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Hi @joshuakirsch,

Its not that Rhino 5 is out-of-date. Its that you’ve updated your macOS to Monterey - a version of macOS that Rhino 5 was not designed to run on.

– Dale

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Thanks, Dale. That makes sense. Sounds like I might just have to bite the bullet and upgrade…

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Hi @joshuakirsch,

A 2015 iMac is no spring chicken. Try the Rhino 7 evaluation version first just to make sure you get the snappiness you want.

You might find the old system is just old…

— Dale