Yeah, it makes a difference. A basic jump/break is usually pretty solid at breaking, I think really any good hard tipped cue can make a good breaker. But jumping, in my experience, is a different story. If you're decently good at jumping and it's not a too tight jump you'll probably be fine with a basic jump/break setup. But as it gets tighter or if you struggle to jump and really good jump cue makes a very noticeable difference.
I've been going through a little experimentation myself with some cues. I have a BK Rush and Air Rush setup along with an older OB break cue, Jacoby jumper, and recently got a Cuetec Avid Surge jump cue as well as a Treadway jump/break.
For breaking, with the BK Rush I do break faster more consistently as measured with the Predator break speed app. I'm a solid 1-1.5mph faster with the BK Rush than my OB or my Treadway. BUT....the results at the table aren't all that different and I find I can break solidly with good results with all three of those cues. So while the BK Rush does have a measured edge in speed, I don't find it to really matter all that much at the table.
For jumping though, I see big differences. Didn't do super great with the Treadway. It's as good or better than any jump break I've used but not as good as the best jump cues. The Cuetec Avid Surge surprised me by not being nearly as easy to jump with as I expected. Not a huge fan. The Jacoby I've had forever and always found it easy to jump with dart style, but it's a little short for other styles. I typically do jump dark style for closer jumps though so that isn't a huge problem and it gets up quick and easy. Then the Air Rush is just really good....gets up super quick and easy, versatile for all styles, and jumps the best. It's small edge over the Jacoby but both of those have a huge edge in my hands over the Surge or a jump/break.