My IEM experience doesn't seem to be as interesting as others

Hi,

I have been a user of the Apple earpods with lightning port for a few years and recently bought a KZ Castor ( Bass Version). Along with this I also bought an Apple 3.5mm to lightning port jack(which acts as amplifier, according to many) and Apple music subscription for loseless music.

Tho they sound good, but to me they do not sound better than my Apple earpods, especially those beats which sound way better on my earpods.

I have tried fiddling the switches to increase bass on the iem's, but that didn't improve the bass by much.

On Apple music, if I try to enable the equalizer, they sound worse than with equalizer off. Basically it sounds muffled. Spatial audio is turned off.

Please let me know if I'm using something wrong or the changes I need to make for a better experience.