B737 MAX 8 Captain reported a Flight Management Computer failure in climb and multiple NAV and performance systems and the autopilot became unreliable. Flight crew continued to destination airport.

Narrative

While climbing through approximately FL28; A/P and A/T Disconnected and we started getting multiple failures with FMC performance data. Failures included A/T limit fail; N1 pointer and limit; static air temp and all FMC data regarding the following: Time/fuel calculations; N1 settings; speeds; all VNAV info; all PROGRESS info. With multiple failures; we first checked for tripped C/Bs and electrical faults with no obvious issues. All attitude and NAV systems were normal along with position (IRS; GPS; DME) information. Performance charts were referenced for needed information. Pilot Flying (PF) duties were given to First Officer (FO). We referenced the QRH but only the front cover provided any guidance. A/P would work; most of the time; with occasional disconnects in pitch modes. We then began getting flashing and then steady #2 engine fuel flow alert. All other engine indications were normal. We elected to [request priority handling] and proceed to ZZZ. Flight Attendants (FA) were advised; PA made to Passengers and message sent to Dispatch. Performance charts were referenced for landing info. Uneventful landing in ZZZ approximately 20 [minutes] after issues started.