I suggest adding the title via PHP and then hiding it with CSS and then when the div has class ‘selected-item’ display the title.
<div class='slider-item'>
<?php the_sub_field('image'); ?>
<?php if(get_sub_field('title')){ ?>
<div class='title'><?php the_sub_field('title'); ?></div>
<?php } ?>
</div>
Than in the css you can have
.slider-item .title{display:none;}
.item-selected .title{display:block;}
Or something along those lines. Hope this helps.
