Joe,
I did Tai jutsu, many years ago. Its quite similar to ju jitsu, in that it has a lot of locks and take downs, and throws, etc...
Yeah - these Arts (Tai Jutsu, Ju jitsu, Aikido, and other similar) are harder and slower to learn, by the nature of the sometimes complex techniques.
Striking arts like boxing (of which I also trained for a few years) wing chun, karate, Krav Maga, and others, tend to be slightly quicker, and maybe 'more fun' (as you see the results quicker?) to learn.
The motor skills kick in quicker, as its a less complicated movement to practise and learn.
The bottom line is, if you dont enjoy what you're doing, you wont fully benefit or appreciate it, so try something else?
And as for a 'street' point of view... whatever you choose to learn practise and train in, is pretty much just as effective as anything else... once you're natural at it...
No one martial art is any much better than any other...
Just find the one you like and stick with it!
Brix