EXS 24 Logic Sampler Users Group

Hi
Atfer i've put gigapiano in the logic sample folder I run exs24 and 
it converts the gig......Then when I come to load it into exs24 it 
takes around 10 minutes to load up.Once its done this the sound 
stutters and distorts as i play a midi file in logic.When you load 
gigapiano up in gigasampler it loads in 2 to 3 seconds.....What am I 
doing wrong?
I've tryed audio capture in gigasampler of 2 midi files from the same 
song but when I load the captures into logic as audio files they are 
not in sync/tempo drifts.........i'm new to all this and if im doing 
something obviously wrong then please accept my apologise for wasting 
time........Please help.