Nice looking car, congrats
930's are well known for their laggish performance and there's a few things you can do to minimise lag on these cars.
You'll have to spend a few thousand dollars in bolt-on mods, but it's well worth it. Get yourself a set of aftermarket headers, free flowing exhaust system & more efficient intercooler (the OEM unit is a paper weight). Couple that with a more modern turbocharger and pre-boost drivability/torque is greatly improved
'89 911 Turbo Cab
Protomotive MAP ECU, Twin Plugged Heads, GT2-EVO CAMs, 3.3L fully finned P&C's, ARP fasteners, C2T head gaskets, Titanium Retainers, Turbo spec valves, springs & guides, 964 splash valves, GT35R BB turbo, GSF Stainless Headers, Magnaflow Exhaust, Full bay Intercooler, TiAL 46mm w/gate, TiAL 50mm BOV, Apexi AVC-R EBC, SPEC Stage3+ Clutch kit, Crane CDI Ignition