Severe performance degradation running ElasticSearch/Kibana behind BIG IP (VE) via Portal Access

I haven't run that behind portal mode yet, but make sure you have the following profiles applied to your virtual server:

• Web Acceleration (optimized-caching)
• HTTP Compression

Without those profiles, you'll likely be constantly rewriting the same JS files over and over. Also, after rewritten the content, the Portal Engine does not compress any of the rewritten files, so the compression profile is a good idea.

Typically adding those profiles to your APM virtuals using Portal Access will see a huge improvement.

HTH