Basically just expanding on what virul mentioned. With the synths, you can generally start low passing between 8-12kHz usually... this removes a lot of the hiss sounds that you currently have, while also opening up the top end to the percussion sounds (hi-hats, shakers, etc). If you feel this takes away presence from the synths however, try adding distortion before the EQ to overcompensate. Also I feel like the kick and snare might be over compressed, which makes them lack punch when the track drops. Hope this helps, but nice work man!