You can try with this tweak:
– Open this PHP file:/templates/ja_kyanite_ii/html/mod_jaslideshow2/default.php, you will see this line of code:
<div class="maskDesc"><div class="inner"><?php if ($showDescription=='desc-readmore'){?><a class="readon" title=""><span><?php echo $readmoretext;?></span></a><?php }?></div></div>
replace it with:
<div class="maskDesc"><div class="inner"><?php if ($showDescription=='desc-readmore'){?><a class="readon" title=""><span><?php echo JText::_('READMORE');?></span></a><?php }?></div></div>
– Go to language file of this JA Slideshow 2 module in your appropriate language folder. For example, with English, you go to file: /language/en-GB/en-GB.mod_jaslideshow2.ini
add this text field: READMORE=Your_text_goes_here
Hope this helps.