My voodoo-monitor icon tooltypes:
BOARDTYPE=Voodoo
SettingsFile=SYS:Devs/Picasso96Settings
BorderBlank=NO
BigSprite=NO
SoftSprite=NO
IGNOREMASK=NO
DisplayChain=NO
FakeNativeModes=NO
GrantDirectAccess=NO
NoBlitter=NO
OverClock=NO
MEMORYCLOCK=166
system2screenblits=NO
Do you have latest updates from elbox? Only time my system slows down is when I'm out of voodoo-mem (try availp96-command). And doens't happen often, only when using multiple 1024x768x32bit screens. :-)