Really slow, as @gagan0123 mentioned above, it is something on your backend blocking output.
Maybe some plugin trying to load something from external resources using blocking HTTP or something like that.
Try to disable plugin by plugin first, maybe you will have success to detect the problem.
Also, I can recommend using this plugin for detecting performance problem:
https://www.ads-software.com/plugins/query-monitor/
In most of the cases, it will show, what slow downing your site.
If you can not solve the problem yourself, you need to turn to the experts.
I can recommend a free website optimization services from this guys:
https://www.wordplus.host/slow-wordpress.php
