Map or Feature Services Extremely Slow

[TalluruRangaVital1]

Map or Feature Services Extremely Slow while rendering.

[George_Thompson]

You are going to have to provide some more details.

- What version of Enterprise is being used?

- Is the service hosted or referenced?

- If referenced, what is the RDBMS being used (need all the details - version / patch level / EGDB version / etc.)?

- Is it slow in different browsers?

- How is it slow and when did this start?

- Is the deployment local to your machine or using VPN?

 Those are some good questions to start with.......

[MichaelVolz]

Are these services new or recently upgraded?

If not new, did these services perform better in the past?

[JudithWammack]

Did the rendering issue start after the October 2025 update?

[VenkataKondepati]

Map or Feature Services Extremely Slow

Symptoms:
• Web apps or dashboards take >10 seconds to load.
• ArcGIS Server CPU spikes to 100%.
Root Causes:
• Too many service instances running concurrently.
• Unoptimized map documents (complex symbology, labeling).
Inefficient spatial queries or lack of spatial indexes.

[Priya_Das]

Hi @TalluruRangaVital1 

If you Map and Feature services load slowly, it can be for various reason:

It can be your system resource (CPU, RAM, memory usage)

Number of ArcSOC running in ArcGIS Server, How much memory each ArcSOC process consuming.: https://support.esri.com/en-us/knowledge-base/how-to-identify-the-number-of-arcsoc-processes-in-a-wi...

Internal network related (VPN, firewall)

You can check the Server statistics:https://enterprise.arcgis.com/en/server/latest/administer/windows/about-server-statistics.htm