Gigi45
what kind of graphics card does your PC have?
it may be too old and not supported by the drivers integrated in batocera.
you could try an older version of batocera.
otherwise i would suggest to use a Raspberry Pi (3 or 4) instead. those older Pentium 4 PCs do have an enormous power consumption and are not better in terms of emulation performance than an overclocked RPi3/4