Attack all the way at 0, Sylenth lagging behind M1 piano

For some reason when I play both sounds together you can hear the m1 hit before the sylenth does…even though both attacks are set to 0. I can’t figure out what would be causing that, any ideas?

Are you using an envelope to control the filter? Is there any attack on that? What DAW are you using?

I am positive this is to do with the envelope’s quality for the synths themselves.

I have noticed that with synths like Sylenth and Massive it is impossible to synthesize half decent kicks simply cause the Attack parameter cant really be set low enough for that rapid hit.