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Low performance for the display of map push-pin markers
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Description

https://de.wikivoyage.org/wiki/Kairo/Qaṣr_en-Nīl

wrong-nearby-1.jpg (1×1 px, 605 KB)

The display of push-pin markers on a map is done by a JavaScript script. But it takes several seconds to present them all. The script is fast but it takes time to present the marker images. It seems that the marker images are generated on the map server only on demand.

wrong-nearby-2.jpg (1×1 px, 607 KB)

It takes a lot of time to present the markers in nearby mode. Maybe it takes a lot of time to download the https://tools.wmflabs.org/wikivoyage/w/data/de-articles.js file (347 kB, German articles) and to analyze it. The performance should be improved.