Laggy gameplay

Not a new issue, been playing many years and problem always been there. I know, if it's so bad why still play, Because when it works it's good. I can be dominating a game 3 or 4 - 0, suddenly the opposition team becomes amazing and comes back to win. My players don't move, can't hold the ball up, can't tackle etc. I'm on PS5 have good internet ~400 - 500mbs, usual PIng of 6 -8,  have Port Forwarded, use LAN cable etc. Have tried playing at different times of the day, seems to make little difference.  Although in UK I seem to be playing people in Germany / France most of the time. Other games work perfectly online, why is FC26 and previous editions so bad?