Metal Capable GPU Error

I just upgraded to v17 and am receiving a message at launch that says "could not find metal capable GPUs. Review the drivers and GPU configuration under preferences."
I am not sure what/how to do this?
I am running Davinci on a iMac (21.5-inch, Late 2013), 3.1 GHz Quad-Core Intel Core i7, 16 GB 1600 MHz DDR3, NVIDIA GeForce GT 750M 1 GB, running on Catalina 10.15.7.
Thanks for any guidance!
I am not sure what/how to do this?
I am running Davinci on a iMac (21.5-inch, Late 2013), 3.1 GHz Quad-Core Intel Core i7, 16 GB 1600 MHz DDR3, NVIDIA GeForce GT 750M 1 GB, running on Catalina 10.15.7.
Thanks for any guidance!