I suggest you to stick to Monero as both in Zcash and Ethereum your graphic card cannot do much. The only profitable coin you can mine with this GPU now is Monero thanks to its lower power consumption and an increase in price. I do not see any other suitable coin to mine for this card especially if it is a 2GB card. Stick to your setup.
Thanks for the reply. I was wondering whether I could tweak it a bit in order to get something more than the 220-250 h/s I am currently seeing. I am a total newbie in this area, but I read somewhere that it could be possible to get more than the double.
Is it something realistic?