[Feature Request]: Use `Span<>` for all `foreach` loops

[PWagner1]

As part of .NET 7, it is recommended to use Span<> instead of foreach, as it's generally faster.

[dax-leo]

Vote for this one! Thank you! Span<> should become a standard in .NET, but many are still using IEnumerable<> interface (myself included :) It's hard to get use to it after so many years. Recently I updated one of my very old parsers which usually has to process billions of lines from multiple sources. After adapting code to ReadOnlySpan<> I measured over 50% perf. improvement and significantly less pressure on heap and GC activity (due to Span is always on stack). I wanted to add this request myself then I saw yours post :) Cool ! Thnx!

[Smurf-IV]

The "Number of loops" in Krypton is rather small, and the updating of the UI takes a lot more CPU than using span on small loops. What takes most of the time is using the vtable lookup's for the colours

[giduac]

The "Number of loops" in Krypton is rather small, and the updating of the UI takes a lot more CPU than using span on small loops. What takes most of the time is using the vtable lookup's for the colours

Closing.