Referring to the attached image, reduce the font size and apply for two information blocks, displaying X and Y respectively.
In these matters, however, we have to remember things related to human physiology when thinking about the user interface. One important thing is visual ergonomics. Regarding this aspect, a good design must take into account a wide range of operating conditions. In addition, it is very important that these devices can be used by the very young and on the other hand by the very elderly. The fact that there are various eye imperfections in all age groups, and in addition, even if the eyes of a fighter pilot are 30 years old, the eyes may change with age, for example the eye's ability to focus at different distances weakens and many other problems. In addition, some have nearsightedness and some have so-called farsightedness. Then there are different types of glasses. Those near-far combination glasses are not problem-free at all.
Of course, money and what you want are at odds. Also, as annoying as it is, the time that can be used for planning is also a limit. Someone says that the code doesn't cost much. It costs time. When the release date is approaching and there is a huge amount of things ahead and limited resources. Changing devices after release has its pros and cons. Someone may think that by doing some small thing differently... but there may be something iron level in front of you. Which, in turn, has been chosen as a compromise in relation to several different variables.
For example, as a myopic person myself, I don't want to change glasses all the time.
If I take the glasses off completely I can see close as well as any other solder with a microscope. The oscilloscope cannot always be located in an optimal place for vision. The eyes of the oscilloscope user are not always the flawless eyes of a young person with excellent accommodation. Then there are the various larger and smaller individual differences related to smelling colors. Someone can already have gray cataracts starting in their forties...etc,
Fonts cannot be reduced any more than what has been done now.
and for example now that the oscilloscope has got a changeable font size. The bigger one takes up space quite annoyingly, but many users are almost forced to use it. When working 8 hours a day with an oscilloscope, it is good to avoid excessive eye strain.
If someone is of the opinion that an oscilloscope does not belong to a 60-year-old or an 80-year-old, then let them grow up or just hang out in kindergarten. I know several people over 80 years old who use oscilloscopes, spectrum analyzers and vector circuit analyzers. I myself have used an oscilloscope etc., not very long, only 60 years.
This is only because the design of the user interface of the oscilloscope is a little more than just wanting everything nice quickly and a lot and possibly without thinking about a wide user base and very different operating environments and situations. The fact that the devices are designed by young inexperienced novices who have just graduated from school and have almost no extensive experience in using measuring devices. It shows.
Sometimes I told someone that before starting to design equipment it would be good to read, for example, old HP journals and familiarize yourself with what it is all about. They are outdated, but they still provide a lot of information for planning in terms of the clear interface between man and machine. One of the fads these days is touchscreens, which are everywhere. Great in the right places and creepy in the wrong places. Take a look at a car. The driver fumbles through menus on the touch panel to adjust the seat to heat or something else, and his eyes are there on the screen because that action requires optical feedback. There will be trucks with which the meeting speed can be 50 m/s and they will dodge from a meter away from their nose. That's why - I didn't choose Tsla for my electric car.
The designer of the user interface must have strong knowledge and a broad interdisciplinary understanding of human physiology, specifically in such a way that it covers more than the "standard human" of physiology textbooks.
When it's not... well, you see it everywhere and a lot. The time for doing well is history. There is no time for that nowadays - because we have made such choices.
Of course, some "optimization" in the placement of different things on the screen can be done in a few things on the screen of this oscilloscope, but the limit value has been reached in font reduction and partially already undershot - but as a compromise dictated by "necessity". I wouldn't reduce it anymore. If it is a problem, the solution must be found in a different way than by reducing the font size.