Add per imagery server restrictions for requests per second

[Gazer75]

Is there any way to add this?

Kartverket, which is providing several WMS layers of open data, have a restriction of 30 requests per second per IP.
Moving around and zooming in/out will return error tiles due number of requests in a short time.
With more than one layer active it will obviously be even worse.

Very cumbersome to have to right click to reload error tiles of the layer so often.

Editing anywhere in Norway will give a list of Kartverket layers for use so you can test this.