Browser performance issue when pipeline job stream output is to verbose.

Hi team. I have an issue, the GitLab Pipelines UI is killing my browser (CPU usage).
It looks like when the job stream output is too verbose, my browser is having a lot of problems to run the GitLab Web UI.

I have a bash script which is running some commands.
The Web UI works fine when the script runs in the normal mode. But, when I run the script in debug=set -x, and the script stream output starts being too verbose, the Web UI becomes unusable and the CPU performance for that Chrome tab just blows up.

I guess it's a performance problem with the UI's JavaScript.

System info:
OS: Ubuntu 18.04.3 LTS.
CPU:

• Intel Core i7-7700HQ CPU @ 2.80GHz.
• RAM: 32 GB.

Browser: Google Chrome v77.0.3865.90 (Official Build) (64-bit) for Linux.
GitLab: GitLab Enterprise Edition 12.3.0-pre a91e743e.