Identify Pressure Loss and Tailing Edges

we're out here testing out this little um it's a dino arduino a dp x6 airless sprayer and i get questions all the time people asking me yo can i just buy an inexpensive airless sprayer now i was just spraying this door and you'll notice that the sprayer itself has a very hard time keeping up with spraying especially if you're holding the trigger down when i first start pulling the trigger it sprays a nice pattern then it rapidly loses pressure it starts to get um tailing edges now if you're painting a door that's really smooth it's brand new it's critical that you don't get lines or tailing edges that would become a problem this this is an older door it's been painted multiple times it ended up i put it on heavy enough it leveled out but you got to be really careful using a sprayer you like that if you're looking for a very very fine finish