After dissecting the information of this chapter, It seems the manual is written correctly, but not fully explained. Time in the capsule is indeed slower, so a time dilation of 1:30 in game would still be 1:30 irl, meaning time is always slower in the world where mc is not present. For example, 3 hrs irl(with no mc) was 30days in game(for mc), so 30 days irl(for mc) would be 3 hrs in game(with no mc).