I have 13 styles on my forum. XenForo seems working relatively fast, I used to delete templates or edit them with no problem at all. But in last 5 or 6 months I keep getting errors. If I try to edit or to revert some of the default templates (like 'message' or 'likes_summary') I get an error that server didn't respond in time. On the 3rd or 4th take it saves all the changes, but this doesn't work with deletion. Is there any way of fixing this? Is that procedure of deleting default template such resource consuming?