Probleme tft 3.5"

Continuing the discussion from OctoScreen - a new software to use OctoPrint with LCD:

Hi, I have a problem with 3.5" RPI Display GPIO clone 480x320

My screen octoscreen scale not appropriate watch this picture please help.

In etc/octoscreen/config

In boot config.txt
Hdmi_cvt 480 320 60 6 0 0 0

I tried
hdmi_cvt 800 533 / 800x480 in boot config
octoscreen same 800x533

and tried in boot/config
framebuffer_width=800 or 480
framebuffer_Height= 533 or 320

but just change little scale but no good scale for my screen

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I Have the same problem.