View layers are extremely slow to render

Question

Hello,

I am attempting to work with some view layers, operating on a One to Many basis (as some features in the main dataset are duplicated in the child). These are extremely slow to render in a web app, including when using filters and scale ranges to restrict the number of features.

Does anyone have any experience of using views and/or of speeding up the performance of these. They are large datasets (~500k features) but consist of point and simple line geometry, the expectation would be that they should be a lor more performative than they currently are.

Many thanks,

Alex

AlexandHall95 · Answer

Hi Shane,

Thank you for the quick response. The latency issues are present in both Map Viewer and Experience Builder/Web App Builder.

I have looked through the documentation provided and most of the suggestions are already implemented.

Thanks,

Alex

ShaneONeill_144 · Answer

Is this within the Map Viewer or in Experience Builder/Web App Builder? Here is some docs that might be useful:

https://www.esri.com/arcgis-blog/products/arcgis-online/data-management/essential-configurations-for-highly-scalable-arcgis-online-web-applications-viral-applications/

https://www.esri.com/arcgis-blog/products/data-management/data-management/scalable-hosted-feature-layers-in-arcgis-online-tile-queries-and-response-caching/

https://doc.arcgis.com/en/arcgis-online/reference/best-practices-high-density-data.htm

https://proceedings.esri.com/library/userconf/proc18/tech-workshops/tw_1983-61.pdf