Perdu is 11.14 DPS with 93 DMG. Has 501 delay, hidden effects of ATT +14 and ACC +5.
Death Scythe +1 (without augment) is 11.46 DPS with 98 DMG. Has 513 Delay and Add'l effect of HP drain.
Thus with sword strap, making delay about the same, Death Scythe +1 is a comparable alternative to Perdu if you do not need ACC. Especially for soloing.