Report hang when scrolling

Report hang when scrolling

Hi, I noticed the new enhanced feature on reports, there is no paging any more, but when user's scrolling down to the end of the screen, the report fetches more records.
However, this ALWAYS causes screen hang.  I have a report with around 40 columns and less than 3000 records, every time when users scrolling fast, the screen will be frozen, and IE will prompt that "the scripts takes long time, stop it?".
Moving back to the paging style shall be helpful. Or, please help to fix this defective. Thank you!