adjust a constant to have Sia use less RAM when downloading
adjust a constant to have Sia use less RAM when downloading

MrStrong/Sia,mtlynch/Sia,mharkus/Sia,ericflo/Sia,NebulousLabs/Sia,MrStrong/Sia,ChrisSchinnerl/Sia,mnsl/Sia,ericflo/Sia,mtlynch/Sia,NebulousLabs/Sia,mharkus/Sia,ChrisSchinnerl/Sia,mnsl/Sia