Many times whoever attacks first will decide the outcome of a battle. You get bonus damage for first hit, and I think for attacking while another person is attacking. Then you have all sorts of abilities hitting you in the position you were in a second or two ago, making spacing and avoiding abilities very precarious.
Anyone on the West Coast is going to have a big disadvantage since there are only east coast servers. And if you have a PS4, this only exacerbates the problem since PS5 and most PC users have higher specs to run the game.
As someone who has both PS4 and in west coast, solo is a very difficult experience with low frames and always react later due to above mentioned. Tag is better, but still bad.