Superstar is a bulldozer. Top and Prof are more similar, it seems there is an Adaptive difficulty applied, where in Prof the script will pressure you for a while, while in TopP it will press you until it destroys you. What i mean is, when the game wants you to concede, it will do it no matter of level at least for Prof and TopP. At least from my personal experience, PRof difficulty just have more balanced football played but more clear victories for you 3-0 and over when the "script switch" is turned off.
I played 4 matches today, all in February after window, with 90TS and improved roster through transfers. In my first match against the last team of the league table, and on road to my 5th consecutive win, i was demolished 2-5!!! With extremely cynical stats, shots on target 10 (me) VS 6 (cpu), possession 60-40 and GK saves 0-9!!! Honestly in 4 of 5 CPU goals, my UP-form arrow GK was bending backwards, like Neo was bending in the first Matrix movie when he avoided the bullets, letting the ball go slowly to my goalpost above his head.
In the second match against the 4th team of the table (Bayer), i was 5th, i lost 1-2 to Bayer, again 2 shots 2 goals for cpu. There was a so strong force field among my players, i was inputting commands and they were trembling, in such a degree, for a moment i thought that my PS4pro is stuttering. After these two games, i made two comfortable wins 1-0 and 3-1 and in the first week of March against a BvB, that was 1st in the League and undefeated, i scrapped a 1-0, but the only effect was, they went 2nd position and Bayern passed to the 1st position. I am still 5th with the first 4 spots being occupied by Bayern BvB, Schalke, Bayer.
What i want to conclude is , despite the "recent" script of TS, difficulty etc, additionally there is still the old ML "script" or "trick", i remember this since PES 3 at least, where when you start to threaten some teams, everything goes wrong for you. You win a match, everyone tailing you or being tailed by you is winning too, you draw a match, the rest teams bring draws. There is a weird entropy that is trying to keep a "mysterious" balance in ML.It seems that all this mess was occurred,so i went from point blank to safer spot, a -7 difference in the league table.
I believe the difficulty is more situational and plot driven then related to settings. I am playing also with basic settings, Semi-assisted cursor, PA1, basic shoot/ through pass, just changed my auto-sliding to semi-assisted from manual, which i think are similar to your settings. Finally if you play FuMA, it is just supposed that CPU is also playing FuMA, which i highly doubt has any serious impact on their passing and goal scoring statistics.
silly me