Yes there are things you can do... having some ferrite chokes around will help allot but they need to be right up on the input to the LED plate. Also twist the wires feeding the LED rather tightly as far into the ceiling or wall as to can. Soldering a .001u ceramic cap onto the input of the LED board and again at the output of the switcher will also help, and all three can do wonders. Having a background, none of these should be a big deal
Having the gear, I tested allot of these solutions several years ago and passed on the findings to one of the big LED manfacturers who went back and re-engineered their devices and are still probably the only ones that ever paid attention to eliminating RFI in these devices. Kudos to them