Improve quality of export SVG to PNG (unix)

[spy20]

Hello,
I'm on Linux, and I want to convert SVG file to PNG with draw.
But the result isn't good quality.
There is possibility to improve the quality ? (like density dpi, zoom maybe)

That's my command : xvfb-run -a drawio --export --format png --output draw_${JEPNG} ${JESVG} --disable-gpu --no-sandbox

Thanks in advance for your reply.