An update on the considerable performance issues I was having after the update: they’ve gone!
I’m very pleased obviously but also sorry to have raised the issue. My computer restarted after a Windows update but I’m still puzzled about the cause. There weren’t any issues with RAM or CPU usage and I restarted Wappler several times. Perhaps there was some other program causing a conflict.
I think the issue with the Sass compiler slowing things down is a different matter - and something I’m sure can be optimised (eg the point at which compilation is triggered). I haven’t had any freezes like others.