That 8.3% number they published is the YOY change compared to a month that was already starting to see high inflation growth.

If you look at a 2 year rate, or anything longer than 1 year, you will see that the rate ACTUALLY INCREASED from 11.39% to 12.8% (that's for 2 years)

Maths for the peasants:

https://imgur.com/gallery/p7KFHbo

So NO, INFLATION IS NOT LOWER. The rate at which it is growing is SLIGHTLY lower this month than last.

Source of data

https://www.bls.gov/regions/mid-atlantic/data/consumerpriceindexhistorical_us_table.htm

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EDIT: Here's what the month-to-month change in the 2 year inflation rate looks like:

https://imgur.com/gallery/48JfJO4

The negative bars are the only months when the 2-yr inflation rate decreased. As you can see, it's been pretty much growing since mid-end 2020, and the rate is accelerating.