[rowsncolumns]

I have tested on 32" 4K and 27" 4K and there was no performance issues.

Slight degradation on Dell 42" 4K, could be because of the ppi or the pixel ratio, which might be causing canvas/row/cell/ dimensions to be not rounded to whole numbers (this can affect perf).

[mklepaczewski]

Interesting. Can you elaborate how you measure performance? What's perfoemance? Framer ate, cpu/gpu usage, mem, scroll speed?

[rowsncolumns]

There are quite a few methods to measure performance

We start of with the FPS monitoring tool which measure the frame rate, memory consumption and GPU sange

We switch to devtools->Performance analysis to measure function call times, layout thrashes and shifts, RAF bottleneck, memory consumption and CPU time.

We also use React devtools to measure re-rendering.

Scrolling is wrapped in Request animation frame loop, hence its being controlled by the browsers frame rate.