Fix performance issues with large tables #54
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This address #50: sorting large tables (~5k rows) was causing ~20 second hang that hogs CPU and makes the whole browser unresponsive. This was caused by too many "recalculating browser styles" when doing
appendChild
on thetbody
. Moving the nodes temporarly into a DocumentFragment and then adding the fragment to the body will cause less browser style calculations and decreased the sorting of large tables from >20s to <3s on my machine.