George
they all get easier
it is just you have to get to a point where you notice them getting easier
at first you are doing them slow and the n you speed up
next day when you go slow again, it seems a bit easier, but you really notice a few weeks later.
I think that is 2 things
first, as Grif says, if you can not count it you cannot do it, well you are not comfy counting as you are trying to do the pattern, but after a while it gets easier to do both because you have tried to, second it seems that if you are always trying at the fastest you can go, then you do not seem to do it at a relaxed level and enjoy it. as you get faster so does the relaxed level. And when you go to that level it seems so easy.
Give it a few weeks, I try to do a slower session after each fast session. You learn to enjoy them as yo notice you are getting faster, then suddenly one day when you are noodling around jamming to a jam track you use the pattern, that is when you get impressed with it.
I have bought quite a few books with all the exercises in them, they all seem to go over the same stuff, Griff has his laid out with a lot more written and video support. He has not reinvented the wheel, these are exercises that a lot of people teach and a lot of very fast lead players have used. They do get results. But the bottom line is hw much time you put into it on a daily basis.
you need to approach these with one thing in mind, you are only going get out of these exercises what you put into them. You have to do them so much you can do them without thinking.