I agree with @skip20092017
I have a radarcape (~$US700) with a DPD antenna, cavity filter, uputronics amp and LMR400. I only get to 200NM as I am only 30ft(10M) AMSL. I get 1600msg/sec so am probably close to the limit.
If you have a lot of electrical noise in the area(I have a dozen cell towers) you could try a better filter. I need to use both the uputronics amp/filter and a cavity filter in my location. The radarcape has a huge dynamic range so can easily cope with it.
The V3 rtl-sdr is better than the first gen. It also works well with a bias-t powered amp.
V3 specs https://www.rtl-sdr.com/wp-content/uploads/2018/02/RTL-SDR-Blog-V3-Datasheet.pdf
The latest FA dongle is also great.
Have you look at optimsing the gain setting. This can help a lot of people. abcd567 and others have done a lot of work on this.
Shielding the dongle also helps me. I bought some metal cases for my FA dongles(I have several setups).
(You can also use the case from an old rtl-sdr dongle on an FA dongle)
Putting the RPI in a metal case can protect the dongle from the electrical noise it makes.
Even putting RF chokes on the usb power lead and USB pigtail for the dongle(if you use one) can help with noise.
There is a user near you that gets a lot more traffic. They get more range to the south. You get a lot more to the North.
They could just be in a better location (usually higher) to see more traffic. Maybe check with them to see how they are setup.