slow ipxe menu

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Hi all,

I have a couple of POS computers that have a slow text output when ipxe is loaded after the dhcp request.
When searching on the web i found a post that someone compiled serial console into ipxe that was causing the issue.
I've tried compiling ipxe without serial_console but the issue persists.

Many other POS computers with serial interfaces do work normal so im thinking this is an hardware issue but im not sure.
Do any of you experience the same issue?

Also i've tried to play with the baudrate when compiling with serial_console and text output gets even slower.
Anyone has a brilliant idea?
Thanks!

Best regards,

Dave