A/C not working enough on hot days/colder on passenger

So I have a 07 prius, who's A/C has never quite worked as well as it should. If its a moderate day out- it has no problem, air coming through A/C is nice and cold- however if it is hot outside and the car runs for more then about 30-60 minutes the A/C starts to tire out. It feels like the air does not blow as hard, and the air is not nearly as cold (my brother has a similar prius with none of the same issues and he can make it too cold in his car when I will be driving on the same day and wanting to open the windows during 95 degree heat cause the a/c just isnt doing it.

The other thing it does- is the car is colder on the passenger side then the driver- the air is at least 10-15 degrees colder from the passenger vents- but if I close those vents the air feels like it diverts to driver side and then I will get the cold air on the driver side- open passenger and air no longer as cold.

I know its not a perfect test but I dont see any bubles running through the sight test when its running, and there hasnt been a significant worsening of the a/c symptoms over the past year or so- so whatever it is- its not changing/getting worse fast.

Thanks for any help.

 

So couple updates- No i didnt buy the car new, it had 12k miles on it (but it was involved in front end collision. Most damage was across top of car (it went under a big truck and peeled hood up, airbag didnt deploy- I was given pictures of all the damage). But the AC I am sure could have been damaged then.

I will look to see if both fans are running when I turn on the AC- cause I drove it to work today and it was only ~90 degrees and while I wasnt uncomfortable the AC for sure cant keep up, cause in any other car or prius I can make myself cold to the point i need to turn off the AC, but in my car it never approaches that level of chill.

Pretty sure the 12v battery isnt the problem because I have had to replace it already and problem was present both before and after replacement.

I replaced the interior cabin filter (which badly needed replacing) but didnt fix the problem. And I still cant quite figure out why the air is so much colder on the passenger side then the driver (but if i close passenger vents that cold air gets "diverted" to driver side and the driver vents are much colder when passenger are closed.

Thanks for the ideas to get me started, I will check everything you mentioned, and I will get back to you with those results

Appreciate the help

Matt

 

And another slight update- both fans are running when the car is on/ac is running. I thought the problem could have been a reversed fan- as the fins were opposite directions, however turning the ac on/off and running up to see the fans spinning let me know they actually spin in opposite directions, one is clockwise, other is counterclockwise- however both are blowing "into" the engine compartment not out of it.

I had the car looked at by a mechanic previously who didnt find anything wrong (as when the temperature is moderate and you just start it up everything seems to run fine and air is cool- its just when the prius tries to keep up with a warm day it struggles mightily.

Thanks for any other insight you may have.

 

Ya, they are counter rotating- and both def are blowing in.

The condenser is pretty clean actually, and it appears the baffles are moving properly.

Is checking the high and low port something you wouldnt recommend me doing at home with an AC charging hose (I know enough that it shouldnt be one that has ever been used with any other AC charging due to the specific oil that is needed with the electric condensor- but I have a new hose for charging AC lines on the shelf that has never been used on any car. Also- if there would be no harm in checking do you know what pressure I should be looking for on high/low side? I read on another post low side should be a bit less then about 35psi, and high side closer to 180 (and I assume the pressures are taken when AC is running full.