https://www.wix.com/corvid/forum/community-discussion/typewriter-like-animation-on-text-possible
https://www.grampsworkbench.com/Examples/Typewriter
Or you can use effect options or the current animations already in the Wix Editor.
https://www.wix.com/corvid/reference/$w.EffectOptions.html
Anything different will have to be through a Wix app.
https://support.wix.com/en/article/third-party-app-impressive-text-slider
Or the use of css/html/js like here.
https://css-tricks.com/snippets/css/typewriter-effect/