Pointer delay

In haiku on a macbook pro with most recent virtualbox the mouse/pointer delay is bad; I switch to opensolaris/vbox and no glitchiness, I am a n00b and i live in a t00b, but keen to give Haiku a good try-out. Any ideas? I got a vdi from myhaiku.de, because the iso wouldn’t boot for me, stalling on a blank desktop after the haiku startup pic/icons.