BTC is really putting a hurting on the other cryptos right now. This happens everytime. Everyone wants to sell off all their crypto to try and get in on that 5% btc rise. They will take a 40% lose to try and get a 5% rise. Free money for the smart people though. So I cant really complain to much.
This only helps those with buy orders set in. Panic sellers can be both favored and hated, just depends on your trading style.
Alts will mostly follow the rise in BTC so it really doesnt make sense to change your strategy since you will quickly make up for lost appreciation once BTC settles.
You could try to time the market and wait till the BTC rise is done before getting back into ALTS but that might not work out.