need my mp3 at a faster speed but no pitch change

the purple lavendar loops that record AUDIO vocals even when pitch is checked off ( follow tempo and pitch )

get very out of sync if i increase the tempo just by 5-8 bpm

in other words i have green blue data

i increase the tempo from 87 - 95

tempo and pitch is checked

i play the song and it is HIT and MISS whether or not it plays back with the vocals on time

now vocals are recorded on 3 different tracks some harmonize some double the vocal

i am using 6.0.5 10.9.2 imac

the song records ok at a higher speed no pitch change but the vocals are not synced anymore

is this normal

or

am i supposed to be able to speed up all color data with manual increase of tempo?

will 10.0.1 do this better ?

when the song is saved as for safe keeping i can see the data on the purple loops shift then move back

its very insidious and very unpredictable

any one please help me understand this..................

in order to do this if GB cannot

is anyone using AMADEUS pro or what else could you recommend to be able to increase the tempo but not the pitch thank you

gl