If GO AROUND mode is activated upon advancing the thrust levers to TOGA (which occurs in most models even in case of a full AP/FD OFF, save those without the retrofit) then speed becomes managed.
If I have problems with an elevator, or ailerons, I would gladly use GS mini and increased speeds. In a no flap no slat scenario, however, I would stick to a selected ECAM VAPP (conf full perf page VLS plus ECAM delta vref). Airbus recommends selected speed (see QRH procedure). Of course, if I see VLS above my target speed (heavier thand loadsheet) I will respect VLS anyway.
Actually the whole thing is very easy. When the lock occurs, set progressively VFE next -5 kt and set next config, then select VLS, then calculate VMAX-10 for the GA, then verify landing distance is not a problem. done.
In a flaps jammed between 2 and 3 I could insert VAPP and manage speed during approach to get benefit from GS mini. Landing distance is not an issue.