I use it with "Compiled bindings" (https://docs.avaloniaui.net/docs/basics/data/data-binding/compiled-bindings https://docs.avaloniaui.net/docs/basics/data/data

I use it with "Compiled bindings" (https://docs.avaloniaui.net/docs/basics/data/data-binding/compiled-bindings https://docs.avaloniaui.net/docs/basics/data/data-binding/co...) and it feels instant to me too (on a I7-8750H). Without this option, bindings use Reflection and it can be quite slow.