Remove resynchronization in dual-mode scrolling?

[severo]

After scrolling locally over 500 rows, we resynchronize to scrollTop (global scrolling), to avoid drifting too much. But, in theory, this makes some rows unachievable if the data contains more than 4 billion rows.

See https://rednegra.net/blog/20260212-virtual-scroll/

[bleakley]

I can see this even on smaller files, on a table with 8.9m rows I get a skip from row 500 to row 18k

[severo]

Yes, it is currently hardcoded to 500 rows