I moved the Intel driver to the drive containing the ArosGames distribution. It booted up, but the mouse and windows opened very slowly—how should I describe this more precisely? One element opens, then the next, and once everything has opened, there’s a refresh effect, as if a faint haze passes over the screen.

My hardware:
Lenovo G50-70, Core i3, 16GB RAM,
Intel HD Graphics 4400.
Audio works very well; however, occasionally, the bsdsocket.library causes a "Guru Meditation" error right after startup.

@Bilbo thanks for testing.
Your CPU/GPU (Haswell probably) is partially supported by the driver so in 2D is slow because for now it use only Vesa as a fallback (i need more machines/people that helps sharing tests and log files).

I choised this to, at least, still be able to boot the machine, instead of shows only a black screen.

About the occasionally Guru on bsdsocket.library it happens also without the IntelHD driver? If it happen only with this i need to check also this, if not it's probably unrelated.