with a bit of css you could use the default css style to behave somewhat responsively on smaller screens (tweak as required).
create a file called wppizza-custom.css in your theme directory and add the following to that file:
@media screen and (max-width: 801px) {
.wppizza-article{padding-top:30px !important}
.wppizza-article-title{position:absolute;top:-30px;left:0}
.wppizza-article-info{position:relative}
}