but it difficult to understand which one work better, maybe i should try to use a professional tachometer as reference
in your opinion theoretically lm393 yes or not?
If both methods produce clean interrupt pulse it does not matter. The lm393 has the sensitivity adjustment in case the receiving photo transistor does not go into saturation but has the requirement for the capacitor on the output.
The signal roll off from the capacitor may limit the high rpm readings. If you can reliably get an interrupt signal without the lm395 and capacitor I'd go that route. If the IR reflectivity of the prop is not going to vary, and the sensor setup distance is constant you probably don't need the flexibility provided by the lm393 board.