Analysis Studio Performance issues

[White light]

Hi Everyone,

Recently user's are raising issues regarding analysis studio performance using IE browser.
Drilling down, building report is taking more time.
Could this be due to increase in the volume of data?
Are there any settings that can be tweaked to improve the performance?

I tried tweaking Report service settings using below values but to no avail.
High affinity=2,low affinity=8,processes=4

Any inputs would be helpful.

Thanks,
WL