Tiny Window

Hello,

I am currently using Teamviewer 14 to connect to a server running linux in my home. I used to have this server connected as a second input to my desktop monitor, but recently moved it to be closer to the router. Now that it no longer has a monitor connected, the screensize when I connect is abysmal, barely large enough to show three desktop icons, let alone the software I have running on it that I am logging in specifically to check.

Is there a way to enfore Teamviewer to run at a higher resolution or at least display the window in a more user friendly way?

I've attached a screenshot of what the window now looks like as well in case my description of the issue isn't clear.Lubuntu Desktop through Teamviewer
In case it matters, I am connecting to the server from an iMac with a 5k display, also running Teamviewer 14.