... well, yes you're right. And sadly, there's nothing I can do for now in fixing it. As far as I know, 2.10 should redraw the canvas much faster.
The only thing you can check, is to set the "number of processors" to 1 in GIMP's preferences. There's an issue with support for multiple processors. In 2.8.10, I've already hardcoded that to 1.
Sorry, that I currently can't do anything about it
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... well, yes you're right. And sadly, there's nothing I can do for now in fixing it. As far as I know, 2.10 should redraw the canvas much faster.
The only thing you can check, is to set the "number of processors" to 1 in GIMP's preferences. There's an issue with support for multiple processors. In 2.8.10, I've already hardcoded that to 1.
Sorry, that I currently can't do anything about it