Jelqing feels "notchy" when you do it yourself!?

I’ve always found that I cannot make my jelqing strokes last the correct amount. They’ve felt slow but when I actually time it, they are barely 1.5 seconds in duration. I think I don’t have much space to move my hands on my shaft. It also makes my hands ache, quite a bit. It doesn’t feel like a smooth motion, like it does on the videos and it feels more like a squeeze than a forward motion. I think it’s due to having a “bent cock” which means that I can’t jelq straight. I think it still works, but it’s just not a smooth action, like in the jelqing videos. I also dry jelq, that might be the reason.