I'm experiencing something in my test environment (1 master and 2 data nodes Elasticsearch, and 1machine with Logstash and Kibana, with enough resources for each node, v7.12 of the stack).
When I login into Kibana, and try to move between spaces or load dashboards, it's very slow performing, like it takes around 10-20s to load the results of a query.
Looking at Firefox's web console, it takes a lot of time fetching
core.entry.js. In Google Chrome, the problem is still present, but somehow limited.
When i run queries to Elasticsearch directly from CLI or Postman, it's very fast, so this actually lets me think that the Elasticsearch nodes and the network are ok (they are on the same test network, with no restrictions in terms of bandwidth or policy).
Any suggestion to improve Kibana's performance?
Thank you for your help and answers!