The first load time is pretty slow, there are many small javascript files to be loaded, however such javascript files will be cached in browser and will not be loaded again, from the splunk response
Cache-Control:public, max-age=31536000
Content-Encoding:gzip
Content-Length:6997
Content-Type:text/javascript;charset=utf-8
Date:Wed, 05 Apr 2017 14:14:41 GMT
ETag:"C00EFF7CF16238A69C71DA753D80DFDABF79A683"
Expires:Wed, 05 Apr 2018 14:14:41 GMT
Last-Modified:Tue, 04 Apr 2017 06:08:58 GMT
Server:Splunkd
Vary:Accept-Encoding
X-Content-Type-Options:nosniff
If you experience the slow loading issue every time, is it possible that you are using a proxy server which does not send cache-control and Etag?
... View more