i have a car daewoo nexia 1.5 l but its too slow

i have watched on youtube many videos like my car

all of them are much stronger than my car

for example look at that car

daewoo nexia 1.5 l

http://www.youtube.com/watch?v=AoqeWXRUvlA&feature=feedrec_grec_indexthe

the first gear 50 kmh

the second gear 90 kmh

the third gear 130 kmh

my car

the first gear 20 kmh second 40 kmh third 60 kmh

and its too slow when im having passengers

i have changed filters and everthing nothing help

its not smoking blue

daewoo nexia 1996