Hello Chris,

Hope you are doing great. You may want to add some CSS code to your Integral Options > Custom Code section:

1.
//You can manipulate the below values so it fits your requirements
.category .content .post {
width: 49%;
float: left;
margin: 3px;
}
2.
.category .page-header h1{
display:none;
}
3. To disable hover effect on Category pages you should edit the 27th line of category.php file, so it looks <figure class=”post-image”> instead of <figure class=”post-image hovereffect”>

Please keep in mind, that using child theme will prevent PHP code to be overwritten during the update.

Let me know if you have any problems.

Cheers,
Piotrek