During WW2 were the Irish Guards considered as more motivated and better as an offensive force than the other Guards regiments? In addition, if this is correct was this due to the high number of Irish Volunteers in their ranks?

I remember reading this in a battle specific history book, though I can’t remember which one. It specifically said that only the Irish Guards were effective attackers, whilst the other guards regiments were good in defence. I can understand this was the case for the majority of the British Army, dealing with a conscript force, but I know the Irish Guards had a high number of Irish Volunteers in their ranks, who would probably have been more motivated than your average conscripts.