Can we have a fix for the flashing interface on older macs please?

This is really frustrating. It’s been reported repeatedly over a long time but still seemingly no attempt to fix it. I’m running high sierra so feasibly it should work, my mac is old but this is specific to Vital and other synths and plugins work just fine. Can something be done to help the many users who suffer with this? Most presets are created on newer versions so won’t work. I could understand if this wasn’t so specific to Vital but it’s the only thing that does this, surely it can be fixed?