steps to reproduce

1. load the attached Excel file
2. scroll down (or right) 15 rows for each time
3. scroll several times and observe the row rendering behavior

result

There is an obvious blank content appearing after a scroll for 3 seconds.

expect result

Showing the blank content as short as possible

workaround

• preloadRowSize="2000"

debug info

• setAutoFilter() takes too much times during scrolling. see rendering-filter.cpuprofile
• ignoreAutoHeight="true" doesn't help on this case

steps to reproduce - long scrolling

1. load the attached Excel file
2. scroll down for over 100 row for each time

result

The time to show the blank content becomes even longer. ZSS takes more time on js setAutoFilter(). Please see longScrolling.cpuprofile