sluggish start off the get go on 1993 Pontiac Firebird

K, see what I get back...any input is appreciated...Have a 93 bird...was quick off the get go until....bolt loose in tranny and knocked out the starter...fixed for a low price of 1000 dollars by a simple loose bolt removal and starter replacement by Firestone...(trust them)...but then...
ran great for 1 day and overheated...coolant issues...ongoing problem prior, but went into the red. (had kid in car otherwise would have been a good car daddy, but my 5 year old comes first) steamed out and didn't start.... firestone nice enough to tow and replace a bad starter they put in....

same thing happened it's the friggin battery... so they took care fee...but engine never ran like it did after it I am thinking....what to do next?

symptoms...sluggish start...doesn't accelerate like the bitch it was when we first met lol....

any advice?

Asked by for the 1993 Pontiac Firebird
the fact that you overheated it says it all. take it to the shop and have them do a hydrocarbon test on the cooling system to check for head gaskets, warped or cracked heads.
by the way, why did it overheat??