Can't confirm this 💯 but heard from a fellow RF from Goa that there was a plan to speed this train up. 12780 was to dep. NZM around 18.00 however it was not materialized as SWR had no plans to give it LHB rakes.
I strongly believe that the Goa portion of SWR must be given to Konkan Railways. KRs MAO is now a 💯 LHB base wheras at VSG it's 💯 ICF total opposite. Even SER HWH VSG and SCR HYB/TPTY VSG are ICF only bcoz SWR is not allowing SCRs proposal for dedicated HYB/SC VSG train. SWR has totally screwed up VSG.