The B-series 110s with the Jumo 210Ga engine installation might have different power characteristics...but the DB-engined 110s would have been a bit dubious for CAS.The pre-war Luftwaffe may have planned to use the Me-110 for ground attack. If so those plans changed after September 1939. The need for night fighters and recon aircraft plus relatively high aircraft cost mostly eliminated Me-110s from the CAS role.
Eric Brown tested a recovered C-model during the war, and a G-model afterwards; when flying both he noticed two glaring issues...one of which confirmed that the various Allied airforces anti-110 tactics had been right...
1/ the DB-installation in the 110 with its mechanical injectors was very slow to pick up speed when the throttles were opened; this was a complete killer when used as bomber escorts, as a dropping attack from the rear and a fast dive away, a "boom and zoom", would leave 110s wallowing to pursue an attacker who was diving away and picking up speed faster than the 110 the Poles discovered this, passed it on to the French....and both of them passed it on to the RAF.
This would have made it a bit of a bugger in CAS...leaving it very vulnerable to AA fire after an attack as it pulled away to altitude - slowly
2/ the SECOND problem "Winkle" discovered was that the 110 was actually pretty unresponsive to the controls, a bit sluggish...except when within 20-30 mph of its top speed; the small tail surfaces simply didn't have enough air flowing over them except RIGHT at the top end of the 110's performance envelope. An aircraft that is sluggish in steering and unresponsive is NOT an aircraft you want to be diving towards the ground in...let alone trying to draw a bead on a target!