Increase blog speed without plugins

how are you all,
I hope you are good and I am Alhamdulillah
We all have small blogs, everybody tries to beautify the blog and use so many plugins, but due to the use of more plugins, the speed of the blog or site goes down greatly, and to increase that speed or delete the cache, history file, delete To use and use different plugins, today I will show you how to speed the blog or site without any plugins.
So let's see
First login to cpanel
And go from File ManagerWeb Root (public_html/www)
Here you can see a file named eror_log.
Delete it.
Then go to wp-admin folder.
You can see an eror_log file here too. Delete it and delete it.
Work was done,
Because the visitors who are on your website, the history file is being stored.
Which reduces your site a lot of speed. It even reduces your hosting space. For this reason, always delete it.
It will take you at least 2 days a week,
The thing that we have done now is that this plugin is basically a plugin, many cache plugins have a risk, your blog or site may be hacked and so it is good to do this work yourself,
Thank you.