Mig splatter....

The issue is the china made wire is a crap shoot. You have no idea what they melted down to make the wire you are running. the contaminants in the wire are causing the spatter. You may get halfway through the spool and find it runs well without any changes at all. It doesn't make a difference if you but it from a weld shop or harbor freight if the weld shop is selling the cheap Chinese wire. You can try turning the voltage up and wire speed down so you are spray arcing to see if it cuts down on your spatter.