Ok, so bottom line, your new monitor is smaller, pixel-wise, than your old monitor. Generally, I go with the highest-resolution monitor available, regardless of physical size. On my Ultrabook, I carry three pairs of reading glasses of various diopters with it hihi.
You can go with less than 8-point font. Just type the point size in rather than selecting it from the list. The attached picture shows 5 pt. Not recommended hihi. You can also make the individual grid rows less tall. Consult Help under Basic Operation/Grid Customization.
You can also play around with Windows settings to make the title bars etc. smaller. In the attached screen shot, I have the system set to display Windows stuff rather large because my screen is so small.
Also, I note that the bottom browse window runs off the bottom of the screen. There could be QSOs that you can't see even if you scroll clear down. So drag the whole window up so you can see the bottom, drag the bottom border to make the widow shorter, then place it back where you want it.
73,
Dennis WN4AZY