wildjokers

I finally upgraded my computer from my 2007 iMac to a 2017 iMac so I can't test this out for you. I nursed that 2007 along for a long time but it didn't like uploading sketches to arduinos (old usb drivers I guess), the cura performance issue, and then the kicker was Turbo Tax stopped supporting the newest Mac OS the 2007 could run. So finally bit the bullet and bought a new one. Cura 4.0 works great on the 2017! (obviously it is new enough so it supports OpenGL 3.0).

In Cura 3.4.1 I do show Compatibility mode on my 2007 iMac. I don't have 3.5+ installed anymore but I could reinstall to confirm/deny in those versions. Is there a workaround or are we just SOL?

Cura 3.5 has some great features that I am pretty excited about (being able to have separate speed on the overhangs is worth an upgrade by itself). However, there has been a terrible performance regression on 3.5. It is so bad I am having to downgrade to 3.4.1. The settings area takes several seconds to scroll and trying to zoom or move the model area is pretty much impossible as it takes many seconds for any movement to happen. I do have an older machine (2007 iMac 2.8 Ghz dual core) but Cura 3.4.1 and prior was perfectly usable. Does anyone else have this issue?