Delay when update codes in View

Hi
I just upgraded to version 4.4.7 . Whenever I update the codes in View, it takes like 30 seconds for the front end to reflect the changes. Seems like there's a cache somewhere but I can't find it. I have not get this problem with the previous version.
Anybody know why?
Thanks

I don't know why, but what if you disable the Debug Toolbar?
See https://codeigniter4.github.io/CodeIgnit...he-toolbar

Or you already disabled it?

ci-phpunit-test | CodeIgniter Testing Guide | CodeIgniter 3 to 4 Upgrade Helper

Ok so I just found out that it was the problem of my server. So it has nothing to do with CodeIgniter. Thanks for your helps