After updating from 0.x to 1.x version of uikit I'm experiencing some performance degradation.
I've made a small repro, just enough for the difference to be visible.
In real app I'm getting around 3x slowdown.
The metric that I'm measuring is frame drop time when remounting big object trees.

The code is here
To run: npm i && npm run dev

In the top right corner there are last 5 times between frames.
When you navigate with "<" and ">" buttons (with throttling enabled) you will see these numbers update.
For the version 0.8.21 the max time is around 250, with 4x throttling
For the version 1.0.60 the max time is around 300, also with 4x throttling.

I'm measuring this on a Macbook with M3 Pro, in Chrome.