Trouble with WebKit HTMLViewer

I’m trying to render a page with some basic CSS animations on Windows (really only translateX). I used an HTMLViewer and selected WebKit. When I run the program in debug mode, the animations run fine. But if I build the application and run it, the animations are unusably choppy. On a 2 second animation I may only get a couple of frames. Any ideas why it would work smoothly in debug mode but not after build?

run a timer with short period, so Xojo runtime doesn’T sleep your app?

That worked. Thanks as always Christian!

Welcome :slight_smile: