I was just trying to help resolve your issue in a quick way.
Generate the track with the system you like the sound of.
Export it as an audio WAV file.
Use a thumb drive (our your network) to transfer that AUDIO to the new system.
Import it into the project.

Does the hiss still show up on the new system?
If not; problem solved and you have a track you are happy with.
If it does, then the new computer is the issue, not the track.

Generating the audio in one then moving it to the other is a simple test to narrow down the root cause and maybe find a solution for this one track..

I know if I create a track on my (good) music computer, then move it to my throw-around laptop, it is going to sound worse. That is expected considering the investment I have in the music computer. Maybe this test will expose something between your two systems.

I do not work here, but the benefits are still awesome
Make your sound your own!