Example in the fiddle. http://jsfiddle.net/6Lnb9yct/3/
To reproduce, scroll to the bottom of the table and click the checkbox (It hides another column). The browser becomes unresponsive for a long time.
It doesn’t only happen when the hiddenColumn setting is updated, but also when I e.g., update the columns (to use an alternative renderer for a column).
If I disable the hiddenColumn plugin, everything works fine.