It dropped because of btc rose fast beginning of the april, other altcoins dropped like ethereum also. If btc price can stay stable, altcoins recover again soon.
This is not the time of these altcoins yet, so we just have to be very patient, the time I am waiting for is what you have said, when BTC price is quite stable and going sideways, that is when most altcoins do pick up, even the ones that are already dumped will pick up.
If the project is a good one and has a very good team that are trying their best, no matter the dump now, it will pick up fast when the price of BTC starts to go sideways, but I really don’t know yet, when the bitcoin will consolidate, I need BTC to really go on consolidation before going sideways.