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Thanks for posting
Other than the fuel filter has anything else been replaced yet, spark plugs?
Does the check engine light stay on when driving?
How is the idle? smooth or rough like a misfire?
I can help you with that, I need to know if the check engine light stays on while the engine is running.
Also it's very important for me to know how it idles, does it have a misfire at idle?
No check engine light pretty much leaves out a misfire but you mention a loss of power and acceleration, did this happen gradually or just all of a sudden?
Can you get fuel trim information both long and short if possible?
Sounds pretty good, let's see what the fuel trim looks like and go from there.
You can jst tell me what the readings are, is that ok?
The only problem I see is the fuel trim, pretty far off on both screens, normal is around .02 or so the close to zero the better, I would try a new mass airflow sensor. I would also check to see what the actual intake vacuum is, could also be a partially clogged converter or exhaust.
All right. The 14.7 hg vacuum is too low, if it's actual intake manifold vacuum, should be at least 18 to 19. A clogged cat can cause this.