I need to unsolder the switches on my keyboard for replacement. Why are the legs of a 4pin rgb led much harder to solder out with copper braid

The 2 pins that are larger that hold the switch much faster soaked copper braid, for 2 seconds already clean hole, small 4 very long and hard desolder (there remains small drops of solder that are poorly visible and do not get them soaked braid). Are there any tips and lifehacks, or is it a matter of skill? Have you encountered the same problem when cleaning small solder holes with copper braid?