So many BUGS!!!

I have been playing it for several weeks now and i have had to delete the app and download it again many times. The game is really fun. Brings back many childhood memories but the bugs just aggravate me. I want to finish buying the trilogy but dont want to waste my money if the bugs dont get fixed. I cant jump out of a car on fire like in the console game, after shooting the pistol or shot gun many times it doesnt shoot anymore, it has many glitches and lags way too much. I am up to Love Fist concert where the psycho shoots the guard and it just freezes there. Before this one when i first downloaded the game it wouldnt finish the missions it would just end at the point after all the Haitian, Cuban and love fist missions finish. The last mission is killing Lance and whatever other missions before that i dont get. It needs to be fixed first so i can decide on buying the trilogy.

ChapoJr. about Grand Theft Auto: Vice City, v1.6