>When did you try it?

Not even 3 months ago.

>We use Avalonia for our Product and honestly couldn’t be happier.

What do you mean "couldn't be happier"? Start-up times and memory consumption are objectively bad. Also something someone else already mentioned in here: font rendering just feels really off.

> Start-up times and memory consumption are objectively bad.

Hah, interesting. On desktop (Apple M2) it pretty much feels instant to me. When targeting embedded, sure there is a delay.

Regarding memory consumption, can't really tell. It never was at the point where we had to intervene AND we target embedded devices with some apps.

What's your benchmark?

>On desktop (Apple M2) it pretty much feels instant to me.

Why are you lying? It's not quick, let alone "pretty much instant". Neither on my M3 nor on my gaming machine. Actually I think Avalonia's start-up time is the worst out of all GUI frameworks I've used so far, including Electron.

I use it with "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.

Rather than assume someone is lying, maybe look for what another explanation might be.

What app are you starting?

For me it feels instant. Like opening sublime text. Faster than opening VS Code..