I have it set to what the default width is for Meta Slider. See here:(scroll part way down) https://www.metaslider.com/documentation/getting-started-with-meta-slider/
Also, if I check the different themes that have been tested with Meta Slider, they each have different suggested width and height px. See here: https://www.metaslider.com/documentation/hemingway/
and https://www.metaslider.com/documentation/twenty-fifteen/ and https://www.metaslider.com/documentation/twentyfourteen/
So, I am not sure who to ask the question, because it seems it has to do with the theme. Any help would be appreciated.
Is there a supported slider you suggest? Just using the free version so far, but plan to purchase, just need to make sure it works.