I'm not saying it's easy ..as a newbie training my own dog& running a Border, I know it's anything but. I don't even have a Border, I have a Vizsla so I even get there's other breeds
I guess I just lucked out ..I click really well with Briar& my transition from total beginner to handling B fairly well was, well not easy exactly. But in 4 months we've won both events we entered and we work really well together. That said, there's still times with him that I want to rip my hair out. There's also times the same can be said for Penny. I'm assuming fast dogs just means that is par for the course? Heck, Penny isn't even half as fast as B but but just the learning process is taxing.
Although, I will also say a Border DOES have ridiculous drive. Or at least all of the ones I've met& especially B. So, that part may not mesh regardless for your criteria!