Qlik sense response time is very slow

[#1]

Hi,

I've created one application in qlik sense.

Multiple tables are joined in the back-end and also I'm using complex expressions in the front end.

My server RAM is 16 GB and processor is 2.3 Ghz.

I think this application is affecting all other applications and also applications are not opening.

It is taking lots of time and I'm not able to change anything in expressions.

Please help regarding server requirement and application optimization.

Thanks