Popups not working on mobile

Hi,

We love your plugin but unfortunately find that the popups do not work well on mobile and on our site the pop up comes slightly off screen. This would be ok but we can’t zoom into the pop up or move it around. Is there a way that we can sort this in the settings?

So you can see what I mean we are using it at

Many thanks

https://wordpress.org/plugins/popup-by-supsystic/

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