Cmparing the old Classic TinyMCE editor with Gutenberg the new block based editor in WordPress

Does the WordPress Block Editor (Gutenberg) slow down my site?

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.