As I have a a PC with some less stronger Hardware as many other FS Player, I just wanted to share my experience in the CRJ here.
AMD Ryzen 3 1200 (overclocked on 2.8Mhz)
AMD Radeon RX570 8 GB (ASRock Phantom Gaming)
16GB G.Skill Aegis @3000Mhz
ASRock B450M Pro4
Game and CRJ are on a SSD, M.2 but not NVMe.
MSFS ist on the graphic preset 'low'. Bing Maps had been activated.
As I yesterday just do some 'hands on', I can only give some small information. As soon as I do a complete flight I will show my experience at all.
I think withhout my 16GB of RAM the CRJ wouldn't be nice to play. The RAM is used to ~80%.
My GPU is only used to ~40%.
As you can maybe guess, the CPU is my bottleneck with almost full usage. I use two monitors, the secend one for charts etc.
When I was just standing at the parking position I had ~25fps. As soon is a started to move, taxi, it dropps down to 15fps.
I cant give an inflight experience because I was only doing a circuit without FPS Counter.
I hope this helped I bit in any ways and I will give more information soon.
(Sorry for possible english issues, I'm german and wasn't using Google Translate 🙃)