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Please see the official X‑Plane Support page for help.
Have a look at the following link. It was made about 6 months ago. It also confirms what jroberts is saying as well.
The presenter sells computers, particularly dedicated for X-plane. The company is also the recommended company in the US by the developer of X-plane ie Laminar Research. I am also of the opinion that the staff who operate this computer company are also involved, possibly work for Laminar Research, and sell computers as a side line operation.
Michael has his own Youtube site with a lot of other good videos.
Here is the link, https://www.youtube.com/watch?v=zAVWkPp9hu0
thank you for your reply and your help. Please allow me to say, you missed the topic a bit or I explained the issue not clear enough. I do not have a fps performance problem. I have a user interface (Menu) font is so tiny and therefore not readable and clickable problem. The airplanes (3D despiction) work great with my 4K monitor, it's a dream to fly them :-)
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