Areson/jquery-handsontable — pull request #3 by Areson (2014-08-22 05:05:31+00:00)
Title: Prevent column headers from redrawing on scroll

Vertical scrolling causes the column headers to redraw, which
drastically reduces performance with a large number of rows and/or
complex custom headers. This is a work-around that prevent the columns
from being re-drawn when vertical scrolling is turned on.