Use this free plugin to build an awesome interactive FAQ page using Yoast FAQ block. The FAQs will display as an interactive accordion (collapsible content). The answers can be shown/hidden by clicking on the questions. The best part is that Google may decide to show your FAQs on the search page itself leading to a higher click-through rate, giving you the competitive edge against your rivals.
I did some tests to see if the new block editor (Gutenberg) slow down my site. I noticed less than half-a-second difference in page speed between the classic and block editors. For this minute difference, you gain a lot of control over layout and design of your page/post content. You are more likely to slow down your site if you add unnecessary plugins to add features that you may hardly use or need.