Understand, we are at times where mobile is about to reach 50% of global traffic, which is why Swypio is so critical.
However, what is also critical, is your site site tends to these people FIRST and then to computers, and as time will pass, it’ll get more and more dire, and you will lose more and more money.
And your brand will be hurt as well.
Now is pretty late to have a mobile first site, but better sooner than later, because the more time will pass, the more your traffic will be used to mobile smoothness which you have failed to offer so far.