its pretty difficult for it to handle like a STi or a Evo considering its not running any kind of the monitoring and control systems that those cars run. Plus, the differentials being used in those cars are much more suited for performance. If that MS3 is using what I think its using for AWD (MS6 or volvo parts), its simply a fo-AWD Haldex system.
The good thing is, the haldex system in both the MS6 & volvo cars can have its "brain" changed and add in a few more parts to give it a more active roll and improve performance.
We must also consider that we don't know what kind of suspension or tires DG is running on the car. On top of that, the rims are possibly running crazy offset which screws up your Scrub radius and can lead to horrible horrible sluggishness and screw up suspension geometery.
Unfortunately for us, DG is mostly a visual company. sure they have there performance cars and projects, but you don't see many performance parts come from them. if CP-E was doing the conversion or one of our performance groups, this car would probably perform much better. Its a good start though!