Does Playit Premium increases the bandwidth?

Hey, I noticed that if i log in at Minecraft with that IP Playit gave me, the chunks we’re loading extremely slow. But If I log in with my local IP Adress the chunks are loading fast as normal.
So does the bandwidth Change with Playit Premium? Or is there No difference between the paid and non paid Version?

Yes they do.
But your issue is most likely your internet speed and/or ping