Assuming one isn’t the 10th member of a minyan and is just a face in the crowd, if you have the option of praying a very slow and meaningful Amidah, but then you’ll end when the Chazan is already well into the chazara and will have missed answering amen to all those brachot (as well as kedusha), vs praying a regular paced Amidah with not as much kavanah in order to finish in time to answer all the chazan’s berachot, which option would be better?
In short, can I extend my personal Amidah even though it’ll make me miss kedusha and some of the chazzan’s berachot in the chazara?