yes, you can hit a 89-90% also with mix passing
some factors that affect
- the number of your midfield players (vs oppo)
- the quality of players and the "talent"/ internal programming
- the good/bad day - roll dice
- maybe not direct but % of training bonus and the victory bonus (motivation)

I never use short passing (too tiki-taka for me lol )
Mix passing is the default and long vs flat formations
Long passing maybe gives less % but it can be more effective in scoring/result

Click image for larger version.  Name: vs Cutham pass.jpg  Views: 68  Size: 48.2 KB  ID: 76307
this is a game of my reserves
I had high % of passing with mix but more and better q players in the center.
But my attackers weren't so effective in front of goal post so the score wasn't wide.

I suppose a good DMC can help and yes high pressing/ hard tackling/man to man aren't my default setting but I use them as emergency button if I want to change the flow of a game or reverse a bad result.