If there are quite a few Test Run configured Custom Fields in a project, Test execution loads very slowly

Description

If a project has quite a few Test Run Custom Fields configured, Test execution loads very slowly.

How to reproduce

1- In a project, navigate to the project settings and look/click for the Test Run Custom fields. 

2- On this screen, create some Test Run custom fields. For instance:

3- Create a couple of automated tests (300) and execute them. 

Actual result/Attachments

The Test execution should not take a long time to load. ** 

Expected result

The Test Executions take quite a long time to load. 

Version

• 7.8.1 j9

Workaround