Question - WiFi 2.4 or 5

I currently have all of my Sonos speakers on a dedicated IoT SSID dedicated to 2.4. I’ve tested the download speeds at its 3-5 mbps.

I have no issues with any of my other IoT devices, but while listening to the Sonos the music will just stop and then pick up again in 30-45 seconds later.

So my question is - should I make a dedicated SSID to Sonos? If I do do I need to force to a 2.4ghz network or can I take advantage of 5?

I have mostly new speakers except for two 1 sl’s and one Play 5.