Zwift choppy after upgrading to Catalina

Upgraded my mac to catalina and now zwift performance is very choppy. MacBook Pro (Retina, 13-inch, Mid 2014). Processor 2.8 GHz Dual-Core Intel Core i5; Memory: 16 GB 1600 MHz DDR3; Graphics: Intel Iris 1536 MB

Worked ok before this upgrade. Have I missed some configuration change?

  • Go into your Zwift settings and see what the resolution is set to. Try lowering it.

  • Close all other apps when running Zwift.

  • Check your network connection.

  • Throw your Zwift log into Zwiftalizer and see what it says.

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