This is specifically a port of MAME4ALL-pi[1] which I&#x27;m guessing is because it&#x27;s been specifically optimized for somewhat under powered ARM devices.<p>[1] <a href="https:&#x2F;&#x2F;github.com&#x2F;RetroPie&#x2F;mame4all-pi" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;RetroPie&#x2F;mame4all-pi</a>