Running 1.5.9 on Gen7/Repetier firmware over Bluetooth. I get stuttering on all arcs. Straight lines are fine. Same gcode ran on Repetier host does not stutter.
Bluetooth by design has a higher latency than USB and it varies from device to device. The Bluetooth round trip time on my HTC One is ~35ms (30 gcodes per second) and nearly double on my Galaxy tab. (15-20 gcodes per second). You should consider using USB instead of Bluetooth (USB round trip time is ~5ms)
See http://www.dietzm.de/gcodesim/FAQ.html#stutter
Why would you use bluetooth? It’s FLAKY as… you also can’t move 10 meters from the printer, so… why not just use a cable?
Wifi I can understand, because you could potentially walk around the house and still keep printing / keep an eye on the job…
But I would never count on bluetooth to run a printer (maybe to start an SD print… that’s different)