Multiroom delay wired vs wireless

Hi all,
I currently have 3 of the DIY amp v4 boards on wifi. I have a strong wifi setup (I’m an IT Engineer) and they display a very strong wifi signal, but I don’t have a wire drop in the location where the boards are. They are all right next to each other, I’ve experienced the long delay with airplay, but mostly resolved that by using Spotify connect since I was streaming from there to airplay anyways. So very minimal issue there, though I wonder if the delay can be improved by wiring them in. Has anyone experimented with strong wifi signal vs wired connections to see if the delays are reduced?