TR Adding/Removing/Updating >500 TCs causing for browser to stuck

[NirBY]

Description of problem

From TR try Adding/Removing/Updating TC causing for browser to stuck.

Version or commit hash (if applicable)

V11.1

Steps to Reproduce

1. In TR Adding >500 Cases
2. In TR Delete >500 Cases
3. In TR Update >500 Cases

Actual results

Browser Stuck

Expected results

Should be a thinking Icon till procedure/action done.

Additional info (Python traceback, logs, etc.)

Verify only in chrome, but I believe it will happens in other browsers.