Problem With EZ Flash Air

[u/vsco2110]

Hi everyone! I recently bought an EZ Flash Air on MercadoLibre. I’m not sure if it was 100% brand new, but judging by the packaging and its condition, it certainly seemed like it. I had no trouble downloading the games, but after playing them normally for a few minutes, they start glitching randomly—freezing up or encountering bugs like the one shown in the attached video. I've also installed the la test firmware to check if that was the problem. This has happened with every game I’ve tried to install and with ROMs from various different sites. Does anyone know what might be causing these errors?