All out speed is dictated by the airframe in many cases.
Scunna is running the BL-32s on the A-10 on 5S. On 6S it would be much faster.
The Dynam ME-262 is surprisingly fast for example.
I run mine with the low-cost Turnigy L2855-2300kv motors on a 5S 4400mah 65-130C nano-tech. Lower C batteries result in less speed.
RC Speedo showed a 112mph for a couple of passes.
Not much whoosh due to the clean airflow around the nacelles.