Datatables 1.9.4-- stop running script error on IE

I am using version 1.9.4 in my application, user is constantly getting stop running the script error on IE (8,9 etc)...

I have used the IE profiler , I have the below results : (some of the functions)

Function Count InclusiveTime (ms) ExclusiveTime (ms) AvgTime MaxTime
JScript - window script block 44,905 50,248.39 41,951.78 1.12 19,733.74
Array.unshift 1,447,666 7,249.77 7,249.77 0.01 343.74
initDataTable 1 57,201.30 6,827.91 57,201.30 57,201.30
initCreatedLeadsDataTable 1 62,888.61 5,687.32 62,888.61 62,888.61
pt 44,904 1,046.84 1,046.84 0.02 218.74
browserHandler 7 62,997.98 93.75 8,999.71 62,888.61
Array.sort 1 50,295.27 46.87 50,295.27 50,295.27
DataTable 1 50,373.39 15.62 50,373.39 50,373.39
String.replace 42 15.62 15.62 0.37 15.62

I need to know what is this array.unshift , why is taking being called so much time.
Need your assistance to resolve this error.