<p>Testcase: <a href="http://www.openstreetmap.org/query?lat=43.5370&lon=-6.4806">http://www.openstreetmap.org/query?lat=43.5370&lon=-6.4806</a></p>
<p>Issue: I'm hovering over the different elements on the left. While ways are updated immediately on the map, hovering over the different relations a couple of times takes 5-30s each here. During that time, the UI appears somewhat sluggish, not to say frozen.</p>
<p>I realize that those relations are quite long, yet the Overpass API result returns an empty / null geometry for most part of the relation. What I find a bit puzzling is that overpass turbo renders the query results more or less instantaneously: <a href="http://overpass-turbo.eu/s/qPT">http://overpass-turbo.eu/s/qPT</a></p>
<p><a href="https://user-images.githubusercontent.com/5842757/29003224-f59aab94-7ab2-11e7-996c-83f832d0e337.png" target="_blank"><img src="https://user-images.githubusercontent.com/5842757/29003224-f59aab94-7ab2-11e7-996c-83f832d0e337.png" alt="image" style="max-width:100%;"></a></p>
<p><a href="https://user-images.githubusercontent.com/5842757/29003202-86b4df7e-7ab2-11e7-8158-a50dbe75c21a.png" target="_blank"><img src="https://user-images.githubusercontent.com/5842757/29003202-86b4df7e-7ab2-11e7-8158-a50dbe75c21a.png" alt="image" style="max-width:100%;"></a></p>
<p>Tested on Firefox 54.0 and Chrome 51, Ubuntu 16.04.</p>

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