After upgrading server, Performance issue occurred in grid widget.
An issue occurred in the grid after upgrading the server from 8.2.5 to 8.3.4.
The grid shows the data results with 205 properties.
It takes 5 to 10 minutes for the query results to be displayed on the grid.
It did not occur in previous versions.
As the number of properties visible through the grid widget settings decreases, the speed increases.
From this point of view, it does not take long for the stream query service to complete itself.
(Service self-completion time is also fast)
How do I get the same performance from previous versions in the new version?
Are there any issues related to the grid?
My server : redhat, postgresql9.4.3, Tomcat8.5.28, JDK1.8.0_131
(The collaboration widget also has the performance issue.)

