Well, that’s because, I’ll try to use simple words: It is supposed to be.
That’s why it’s called an ACTION rpg.
That’s why they have MMORPGs.
And JRPGs
And Tactical RPGs.
There’s all sorts of different categories for different games!
It’s been like this for 30 years, going to 40 if you count games like Robotron.
If it’s too fast for you, maybe a nice game of Chess?