OK! what a night this one has been!
Finally got a solution to my problems…
so:
speedPxPerFrame = 2;
currentFrame = (time – inPoint)/thisComp.frameDuration;
value – [0, currentFrame*speedPxPerFrame]
is awesome! but a bit to slow for me.
and if I fiddle with the numbers it starts flickering again.
SO:
1: Create a null and apply the expression to it
2: Parent the text and resize comp untill all the thext goes by
3: exported an uncompressed video of the text
4: Imported the whole video and time remapped it to the lenght I needed
5: turned on the frame blending option in my text video layer and my comp
its a bit of a neandrathal way of doing things but the only one that has worked flawless so far.
if you have a better expression or a little plug-in please share