@icper There is a lot of interesting conversation going on in the other threads. It is crucial to understand the NP onboarding process. Since early this year Dffinity planned to work on true decentralization and moved to the Eastern part of the world. With that new NPs were onboarded. It takes around 4 - 5 months for the process to complete. This means half that 4 to 5 months find and ordering vendors to build custom server hardware. This is if the chip shortage remains the same and doesn’t get worse. So this is why you’re seeing new nodes being added that were intended to be added at least 3 months ago. This is said well in this comment
So basically it takes half a year for Dffinity to scale if there is a surge of usage