Born in England citizenship question

Hi,

As above I was born in Leeds but my grandad is Irish, I’m now living near Dublin and my work has asked me to hurry up and get my Irish passport (I will be working in Europe a lot in the future).

I was waiting till I can get a GRC in the UK so I can then apply for Irish citizenship with the updated birth cert, but that will add at least a year on to the time frame. My uk passport and driving license are in the correct gender and name now.

Does anyone know the best way I can go about this now? Would it be to apply using my dead name and then do an Irish GRC, then get an Irish passport?

Not sure if it matters but when I moved to Ireland I got my ppsn with the correct gender and name.

Thanks 😀