Some good, fast, real jazz can be heard by starting with Pat Martino, Dave Brubeck Quartet and Joe Pass, among many others.
Check out Pat Martino's "East!" and "Think Tank", DBQ's "Time Out" and Joe Pass' "For Django"
Return to Forever, Mahavishnu Orchestra and the like, while very fast and very enjoyable at times are more fusion and not Bebop, Post-bop or Modal type Jazz.