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by benburleson 2541 days ago
Check out canvas-datagrid: https://github.com/TonyGermaneri/canvas-datagrid

I'm using it to mimic Excel-like display of data, and it's pretty responsive, but I'm not at your scale of 10x/sec.

It also supports cell highlighting with different colors, but, unfortunately, doesn't natively support CSS-type classes on cells.