What is the server configuration you have? Which browser are you using? Have you tuned your cache level depending on your server configuration and usage? Please let us know some more details so that we are able to help.
I've included screenshots (CPU 99% ) server
Sometimes you can see that the performance of the processor is not good
I use the browser Google Chrome.
The server's hardware details:
2 procesor CPU intel xeon(R) x5670 2.93 GHZ ,Memory 64 GB
What reasons can affect server which is slow?
CPU.PNG 32.7 KB
Looks like your Background job takes high CPU. Do you run any Scheduled reports? or use extracts?. Can you expand the Tableau Server backgrounder to capture the list of process name. What is the deployment option that are you running on (number of clusters, number of process), this could affect the overall performance if not configured properly. You could take a look here on the process configuration based on the scenario of usage. Improve Server Performance
Also if you have any antivirus running, please disable that as its known to cause issues with Tableau server process.