Very sluggish 2010 - help!

the car should perform the same in all 3 modes if you actually floor it. can you try a performance test with a stopwatch?
at that mileage, i wouldn't expect the same as new. you might need a new battery, or it could be a myriad of engine problems.
does she burn any oil?
do you have the service history?

 

Is the hv battery bar graph showing low? If your hv battery is discharged you are running on gas engine only.

 

if it started after the egr cleaning, it may be related. take a look at @NutzAboutBolts youtube videos. perhaps they didn't do the whole circuit, or didn't reattach everything properly.

after that, i would go through the maintenance schedule for your mileage. could be plugs, injectors, o2 sensors, dirty throttle body, air filter, etc.

 

The complete Exhaust Gas Recirculation system needs cleaning. Starting at the exhaust connection and working forward, that’s the Exhaust Gas Recirculation cooler, valve and pipe. That last item connects to the intake manifold. Note: I’m using colloquial names, might be partially at odds with Toyota terminology, but they’re descriptive and common sense, what everyone here is using.

the EGR gas flows from the aforementioned pipe into a gallery that runs across the intake manifold, then up through four, small diameter capillary passages, one for each engine intake port. Accordingly the intake manifold should be removed and thoroughly cleaned as well, in particular those four capillary passages.

More info:

Bad Flywheel | PriusChat

 

Old thread but still: if there’s lack of power when flooring the egr would not be first thing i would check. When engine is maxing out it is asking fresh air 100% (= egr closed). Of course intake manifold can be badly clogged but i guess egr get clogged first thus it unlikely to happen.

If no CEL in dash then how are the brakes? Hot and smell? When was air filter changed last time?

if problem solved would be nice to know what was the root cause