MB8600 modem signals, good/bad?

Hello everyone,

I just got Comcast, and they ran a new line from the street underground to the junction box on the outside of my house. They installed a splitter, and I asked him wouldn't it be better if there wasn't one, to which the tech replied stating that the power is too strong coming from the street, and in fact I might need to add another before connecting to the modem.

I accessed my modem (MB8600) and got the following results.  Do I need to add another splitter before connecting it to the modem? Any recommendations on make/model to use for splitter for this?

Thank you in advanced to any who comment and help me.

PS - I can't figure out how to copy paste everything here like I've seen other's do, without it being very difficult to read. Here is a link to the image of the results.

https://ibb.co/7YyRr2Z