[Task] Server side processing

[CermakM]

User story
As a user,
I want a quicker response and more efficient data handling
so that I could use this extension with bigger data sets.

technical: @CermakM

Acceptance Criteria

• Data is processed server-side and loaded lazily.

[filipegl]

Hi, I would like to catch this issue

[CermakM]

Check out https://github.com/vaexio/vaex/ whether we could use that.