@Edent I‘m maintaining Statify, so I am biased, but it is a clean, lightweight plugin. But no Import. Koko is really great too. And the UI is better. Hat tip @dvk
There is also Burst Statistics and Independent Analytics. Or WP Statistics. But these are bigger in Features, which could be not what you want.
If you want something outside of WP, you can use Matomo, Plausible or Fathom.
But I‘ve never seen any import features for Jetpack unfortunately.