Okay, wow. There are two main problems that I see with both difficulties.
1. The overall rhythm of the map is counter intuitive. This is compounded by the fact that often note spacing does not reflect rhythm. You might need to go in and rework the rhythms. Really listen to the song and figure out where the important moments are. I will go into specifics for each map later.
2. There are way too many sliders that overlap notes and other sliders. This leads to them being hidden and giving very little time to react.
Easy:
00:03:36 (1) - I would advise placing a note on the downbeat here. I keep on feeling I have to wait for the first note or hitting on the downbeat and missing it.
00:17:71 (3) - I would suggest prepping this speed up with another note before the slider.
00:36:85 (1) - The wait before this slider is way too long and the beginning of the slider is to close to the previous beat. Try figuring out a rhythm to take up the time between the previous note and the slider.
00:41:92 (1) - The first half of the slider is okay, but the return doesn't end on a very strong point. I'd say have it go one way and place a beat in the space between this slider and the next.
00:43:33 (4) - I think this slider should be shorter.
01:00:50 (1,2) - I can never get these notes in context. I think it's again because the wait is too long. Try placing a note before them.
Normal:
00:02:23 (1,2,3) - Recheck the rhythm in the drum part. These notes are too slow.
00:15:74 (3) - This note is hidden.
00:36:85 (1) - Same as the slider in Easy
00:50:08 (1,2,3) - Do you really want these to overlap that much?
00:56:70 (1) - These sliders start in an awkward place musically. I'd suggest bumping them a 1/4 beat to the right and adjusting spacing accordingly.
01:23:02 (1) - This note has the potential to be very annoying since it's offbeat and not prepped at all. I don't know if there's an elegant way to fix it, though.
01:40:75 (2) - Having a slider hidden under another slider is confusing, especially when there is another note in between.
Anyway, I did a little bit of reworking on the easy map to demonstrate some of the things I was talking about. This is by no means a perfect fix, just something quick and dirty. Hopefully you can see that it feels a bit better than what you have right now.
Download:
David Byrne - Like Humans Do.osz