Importance of Using An SSL

An SSL is called a Secure Socket Layer Certificate. It encrypts the data on a website so that forms are safer from hackers and 3rd party programs. It is an SEO Google ranking factor.

It does slow the site down, so the rumors are true. But not if you optimize the site speed afterward.

I do not believe it slows the site down enough to be a negative influence. It is better to have a safer site than a faster site, and the slowness is milliseconds.