Lower max Accel after installing FMMM, ToroTube and Motor Decouplers

I installed FMMM, the ToroTube and Motor Decouplers on my VCore3.1 500 to get better printing results and higher speeds/accel. I also switched from using a cable chain to using the umbilical-cord design. Now when printing I saw visible echoing. Therefore I remeassured the vibrations for input shaping with the macro. It resulted in higher max accel for the x-axis but lower max accel for the y-axis. Does anyone have a clue why? The whole printer is enclosed and fitted with high-temp glassfibre mats. Attached are the shaper graphs before (january 24) and after (may 24) upgrading the printer. Any help would be much appreciated! Kind regards, Vince