Ford Aspire has had trouble shifting manual trans but when shift to next gear revs 2 or 3 secs before going also now its hard to crank it sputters and wont go over 15 mph sometimes its just fine?

It sounds like your Ford Aspire may be experiencing issues with both the transmission and the fuel system. The delayed shifting and revving could indicate a problem with the clutch, Transmission Fluid, or linkage, while the sputtering and inability to exceed 15 mph may suggest fuel delivery issues or a failing ignition system. It's advisable to have a mechanic perform a diagnostic to pinpoint the exact cause and address any necessary repairs.