Investigate scroll event debouncing

## Motivation

Scroll events may be fired at a high frequency, without taking unwanted framerate drops into account.

## Details

A similar problem is present for virtual scrolling/windowing approaches. We should follow the thread below for further information:

- ["Ideally there would be some way to tell the browser to fire scroll events synced to the frame rate rather than sending them asynchronously (and probably debouncing)" – Devon Govett](https://twitter.com/devongovett/status/1175094567273500672)

No file, test, or entry point is identified in the issue. Start by reviewing the linked discussion and the mention of virtual scrolling/windowing; done means defining an actionable approach for handling high-frequency scroll events without unwanted frame-rate drops.

Written by the indexing model from the issue text.