Similar to this post from 2011 I’m experiencing very sluggish and jittery response from the rotary sliders in an iOS audio app I’ve been working on. At first I thought it was the custom look and feel that was slowing things down (profiling was showing a lot of time spent there), but switching to the default style there is very little difference. When compared to other iOS audio apps with similar controls (which are super smooth and responsive), my JUCE app’s controls feel very awkward to use. Like there is a very slow refresh rate.
Are there any tips to improve the GUI performance on iOS?
I’ve also tried using OpenGL which didn’t seem to make much difference (as expected as Core Graphics is on par with OpenGL for this kind of thing).