Hi @zrevs1, this does potentially sound like a hardware performance related issue. Normally, I would not recommend using any other apps while DJing. Especially on older hardware.
I put together the following personal iOS recommendations a few years ago. I think most of these are still valid.
Having said that, the culprit could be your WiFi network load. Your dedicated router/access point for the Behringer X-Air app was handling constant bidirectional data (mixer control, metering, etc.), which can saturate the WiFi band (especially if it’s 2.4GHz or shared with other devices). iPadOS prioritizes real-time audio apps like djay, but heavy network I/O from X-Air could have lead to the issue. The fact that closing X-Air resolved it immediately points to this—it’s not uncommon in pro audio setups where apps compete for CPU cycles or network stack resources.
