Good score on easier test. Is difficulty accounted for?

Hi everyone,

I took PT 123 last night and noticed that all the passages were in the 1-2 difficulty range. I received a good score on the test, but now I am wondering if it is a little inflated? This would be a 5 point improvement since my last PT 3 weeks ago, so I also think I could have just got better.

Is this not a concern because of how the conversion works?

TIA!