Air con slow to cool on passenger side

[bennys8]

Hello all,

When I turn on the max AC or turn on the AC at any fan speed the passenger side does not cool as fast as the driver side. It takes 5-10 minutes before it starts blowing out cold air. I tested this multiple times with the same results. In fact, the driver side air is cooler than the passenger side when the AC finally starts kicking in for the passenger side. I went as far as turning the temperature 5-8 degrees lower on the passenger side with the AC on and the fan speed set at max. The driver side still blows out colder air. All the vents are fully open and air is coming out of all of them. The passenger side just takes longer to blow out cold air and when it does the air isn't as cool as the driver side. Any ideas?
I have a 2005 X5 4.4 with 53K miles.

Thanks in advance,
Benny