highslide-software/highcharts.com — pull request #1445 by AlexYelkin (2013-01-10 08:32:42+00:00)
Title: Check "redraw" flag in "point.update" function.

Added check of "redraw" flag in "point.update" function for preventing unnecessary calls of "serie.getAttribs()" if redraw set to "false".
With many updating points (about 300+) in IE 8 user see a warning about slow script, because "serie.getAttribs()" is pretty heavy.