Display resolution

[Jonny-T-cyber]

Hi all!
I istalled HA OS on a Raspbarry Pi4 to which I connected this display:

http://www.lcdwiki.com/4inch_HDMI_Display-C#Download_Resources

It seems to me that it is impossible to install the driver provided by the manufacturer ... correct?
So I changed the orientation of the display by adding fbcon=rotate:1 to bootargs
But:
Is there a way to decrease the resolution of the HDMI output to adapt it to the Display so that I can read the 'Home Assistant command line' better?

Thanks