Is this HMI just a lost cause for running Edge with many tags?

I have an Advantech TPC-125H running an Edge project in a production environment. While meeting the bare minimum requirements, it definitely is sluggish and laggy. Can this be improved by some better memory optimization or should I just push for a better HMI? Things work but using it is just unpleasant. There has to be something better in this form factor for our project.

Atom E3845 (1.9ghz, 4 cores, 4 threads)

5.16GB working RAM

Are you running windows?

That CPU gets 1071 pass marks (low). For Windows and Perspective, I don't recommended going below 3000ish (usually not the Atom range, moving into at least the i3 range), although that's a very rough guide.