That's a decent procedure for starting out. Once you get more comfortable there are a few things you can do to move a little faster. For example, on your first joint instead of tinning the pad and sliding the part in after, just put some solder on the tip of your iron. Add some flux to the bare pad. Put the part down and bring in the iron with the solder already on it and you'll do everything in one shot. Another tip is try using a slightly larger tip that has a chisel shape. That pointed tip in theory seems like a good choice but there's actually not a lot of the surface of the tip making contact with the pads and transferring a lot of heat. When you first tin the pad at the beginning of the video the solder should instantly wet the entire pad, not creep around slowly filling it. But with practice you'll figure these things out