I use the built in ereader software, called NeoReader. It's pretty fast, and after a small ramp-up of figuring out how to customize things (for instance, the font size wouldn't go small enough for me, so I had to learn that the "pinch-to-zoom" gesture could make the font size even smaller than the font size slider could go)... I've been really happy with it. I've also played around with KOReader, which works very well, too -- I'm just more used to NeoReader at this point, so I haven't switched over.

Drawing is very good in my experience, though I haven't tried the reMarkable or the Kobo Ellipsa. Maybe I just got used to it really quickly but it doesn't lag enough for me to actually notice when I'm writing on it, and hasn't slowed down at all since I got it.

I have an android ereader without a wacom layer, my favorite app to use is Moon+ Reader. If you have access to an android device, I strongly recommend trying it out. The customizations allowed are staggering and I can't imagine getting a new device that is unable to run it. KoReader is also great and open source. People don't love the way the animations work on an ereader but you could use the Kindle app as well.