Jira updates issue very late

Question

We have recently upgraded the jira and now have some problems.
Some custom fields are added late after creating the issue.

Like : Summary and Security Level.

Transitions also appear very late after issue creation.

Jira Version: 8.13.1
As you can see issue created 23 min. ago
Level Updated 18 min. ago

In older version of jira it only took 1 or 2 minute for updating but now it works slowly.

Please help me to fix this problem.

Jamil Rahimov · Answer

@Dirk Ronsmans 
We had problem with CPU.
It worked fine after closing unnecessary apps which consume cpu.

Dirk Ronsmans · Answer

@Jamil Rahimov ,

Care to maybe elaborate what the issue was? Perhaps someone else can benefit from it.

Jamil Rahimov · Answer

@Fazila Ashraf 
Thank you for your quick response but we already solve this problem.
The problem was on server side