You can adjust with this CSS:
@media only screen and (max-width: 767px) {
.swiper-slide .caption-content h1 {
font-size: 32px !important;
line-height: 40px !important;
}
.swiper-slide .caption-content h2 {
font-size: 24px !important;
line-height: 36px !important;
}
.swiper-slide .caption-content p.caption-excerpt {
font-size: 16px;
line-height: 24px;
}
.swiper-slide .caption-content[data-caption-size="smaller"] h2 {
font-size: 24px !important;
line-height: 36px !important;
}
.swiper-slide .caption-content[data-caption-size="smaller"] div.caption-excerpt {
font-size: 14px;
line-height: 22px;
}
}
Add this to the custom CSS box within the theme options.
Thanks,
– Ed