Optimize the site’s download speed on Drupal
Description of the task:
Work with the php/js/css code. Reduce where possible, unite and compress.
Working with modules. Some modules can be replaced by “lighter” and some can be scratched by “cuts”. (Maybe some of them are not needed at all)
Working with the server. Drupal is very sensitive to settings.
Working with the setting of PHP - there are also your own tricks here.
optimization of work with the base. The transition from Apache to Nginx, in general, should also affect the speed.
DOP tasks:
1) Link to assign the attribute rel=nofollow
2) Set priorities and updates frequencies in sitemap.xml
3) Images automatically generate alt based on headlines.
Work with the php/js/css code. Reduce where possible, unite and compress.
Working with modules. Some modules can be replaced by “lighter” and some can be scratched by “cuts”. (Maybe some of them are not needed at all)
Working with the server. Drupal is very sensitive to settings.
Working with the setting of PHP - there are also your own tricks here.
optimization of work with the base. The transition from Apache to Nginx, in general, should also affect the speed.
DOP tasks:
1) Link to assign the attribute rel=nofollow
2) Set priorities and updates frequencies in sitemap.xml
3) Images automatically generate alt based on headlines.
Ukraine 
Available for hire