Loading delay observed with Session & Perspective designer

I have one perspective view which contains 120+ text components and 30+ charts components with 60 secs polling, which are binded with named query. I have allocated 4GB to designer and for session 300 sec as session timeout.

Now the issue is I am observing a 45-60 sec of lagging with each text & chart component in the view to be loaded completely. Now how can I minimize this loading delay/no loading delay? Any recommendation/ suggestion?

What are the configurations I will have to revisit to better user experience?If any?