iPad Sidecar really glitchy, not usable at all
I'm using my iPad Pro, iPadOS 15.7, as a sidecar for my Macbook Pro 13", OS 12.6, all updated, and it's glitchy as ****. I often have to reboot both devices just so my Macbook can connect to my iPad. Using the "mirror" option causes a strange flickering to happen constantly on my iPad, to the point where it's unusable. I'm trying to use my iPad as a drawing tablet for Photoshop, and when drawing on my tablet it has a constant lag and glitchy quality to any drawing tool, not smooth at all. Using a two finger pan/zoom on the iPad is like 4x more sensitive than it should be, making the image pan and zoom all over the place with the slightest gesture. Same qualities happen if I add the iPad as an extended display.
And only when in the sidecar app, the color on my iPad becomes about 20% less saturated than my Macbook. On the iPad, I can open an image in Google Photos, and then go to mirrored sidecar where that same image file is open on my Macbook, and this image is 20% less color saturated in sidecar. I mean wow, how does that even happen?
Both devices are on the same Wifi, with Bluetooth turned on, handoff turned on. Having Universal control on or off doesn't fix the issue. Rebooting doesn't fix it. The only thing I can't try is a hard wired USB connection (I just don't have a double-sided USB C cable), though reading several other forum posts it looks like that is not a fix for anyone else either. Seems to be a problem with the entire sidecar function.
Can we please get a fix for this? I bought a $1500 iPad to use as a Photoshop tablet, and it is completely unusable as such. I could have bought a $50 Wacom tablet. Please help :)
iPad Pro, iPadOS 15
