Achievement of 2500 defeats takes hugely more than any other

Achievement of portrait 'Captain Phasma' and especially 'Endurance' takes ridiculously more effort and time compared to any other achievements.

Achieving 2500 defeats means 500-600 days to reach if fighting all 5-5 arena fights every days (considering winning 4/5 at least).

None of the other achievement takes that long with normal, every day playing.

Please lower it, like halve it.