We have rolled out a series of fixes over the past few weeks on this, and some of the earlier issues have been addressed (see: Problem is refreshing every 2 minutes main coding page why? - #6 by kirupa)
If you are still seeing issues, please file a bug here: https://issuetracker.google.com/issues/new?component=1379083&template=1836320
Please include your browser details, how much RAM you have, your connection speed (up/down), and your workspace-id. These details will help us see if there are other issues that may be causing this.
Cheers,
Kirupa