if your tester needed translate most of words without online translator than 8 hours is realy good timeYou're a very fast reader then,
I've done tests on several level of gamers to engage play time,
And let me tell you the rage is vast:
Fastest took about 2.5 hours.
Slowest took about 8 hours.
But from the average play time, it was around 4.5 hours.
So, you seem to be in the faster category, good for you
BTW watching the 8 hour playthroughs were a bit of a torture ngl.