hello i am new to this forum just join and i will like to ask someting.

i have a 91 eclipse base ( with a 1.8 engine sohc 8 valvels )
i alway have some a problem with it but i dont care i take care of all ( not a expert on mecanic but i know someting)
but the questiong is : is this 1.8 (8 valvel) engine can produce because i fell the car slow.
some people tell me is becos the 8 valvel that if it had 12 or 16 will produce more.
can a car with 8 valve run good or beat a 16 valve one?
i ask because i was reading about hoda CRX engine and one with 8valves make lik e60 hpb and the other one with 16 Valves make 90 Hpb ( same engine) only the head change.
is my 1.8 (8 valves) had a future or is better to get a 2.0 dohc?