Any way or work around to speed up excel 2013 calculations process ?

Hi
Please if any one can suggest anything to solve this issue that would be good.
Or I should stick to excel 2010 ?

Thanks for your help.
But I am afraid that non of these useful links were addressing my issue.
After some goggling I've found these tricks that would help to increase the calculation process for excel 2013:-
1 - update driver/vga driver to latest version.
2 - update excel 2013 to latest hotfix.
3 - options/advanced/disable hardware acceleration.
4 - set default printer as Microsoft XPS Document Writer (you can change it to anything else when are really printing).
5 - disable all add-in for excel.
6 - if non of these worked out, then last thing is to open excel in safe mode : excel/safe (run screen).
to be honest I did not tried the last option because the above earlier 5 steps I did applied all together and I do not know which one fixed the issue, but it worked.