How to make a static site with search and feedback? How to maintain site speed for SEO?

Question

Search Engine Optimization

A little background:
I found that you can quickly roll out a WordPress site, on a ready-made theme with excellent speed indicators, using caching plugins. Well, I'm not chasing individuality, so I chose this option. Now I'm disheartened, because ignorance of php forces me to use the built-in constructor, and its capabilities are severely curtailed, some elementary actions cannot be done! I won't go deep. In general, it seems that there is a need to understand php and break theme styles.

So the thought flew by, well, it ... I'll write a static site in html + css + js. Because I will change the content, I don't need the admin panel. A static site satisfies every need, perhaps except:
1. Feedback.
Does feedback significantly slow down the speed of the site?
Feedback in the form of "iframe", which can work on a static site, sags the speed of the site? After all, Google and Yandex maps squander (((But there are already solutions, but what about feedback, are there competent solutions?
In particular, I would like to implement the form on a static site with Bitrix24, are there such feedback forms?
Free feedback tools suitable for a static site is there?
How do these forms behave in mobile version? Mobile speed is also important.
2. All the same similar search questions. There will be a list of articles and in the future you may need to search articles. This is real without a database, for free , without a significant loss in speed?
3. What are the prospects for a static site? Will I be forced to unpack it into some cms in the future?

Answer 1

1. If programming is really bad, then for feedback, simply connect the script of an external service, for example, Jivo. There will be no drawdowns in terms of speed, Yandex loves it, Google - purple.
2. Connect the Yandex.Search API as a search. There will be an SEO bonus from Yandex. Google is also purple.
3. The prospects are quite normal, if you do not abandon it, but deal with it systematically.

Answer 2

1. depends on what is pulled in the iframe / js. Just add a shape and that's it.
2. for search, you can use the external https://www.algolia.com/ or look for other solutions (in some solutions, the search index is generated in a separate file, while in others, work is done on the client through js)
3. good prospects if organized through the static generator (hugo, 11ty, gatsby and others ), you can optionally make the admin panel through netlify / Contentful CMS

Answer 3

with your problems, it’s easier to abandon some of the ideas and sit on the