This thread is maddening!! I been yelling at the screen, reading everybody WAY overthinking and over engineering this guy’s dilemma. It seems that he simply hears an "immediacy" from earbuds that he’s not getting from loudspeakers in a room.
While I do not like earbuds... one can become accustomed to that sound. I fear we have an entire generation of young people that have grown up with earbuds, and they think earbuds sound "normal". Earbuds have become the reference of a generation.
That, said, I also agree that many audiophile speakers lack immediacy and dynamic excitement. (is that what OP means by timing?). For that you need to go with high efficiency speakers.... HORNS... Tannoys, or maybe Zu Audio speakers? Are resonances more the problem?.... then maybe try electrostatics or big ribbons like Martin Logans or Magnepans. Of course the ROOM plays a large role, but clearly, the typical little round cones in a wooden box aren’t doing it for the OP, so time to try different types of designs.