Custom CSS Fonts Loading Issue

[cobyxd]

this is a small issue that I don't know how to exactly ask, but basically what's happening is I uploaded a custom opentype font, but loading it on the site will leave an empty gap for a couple seconds before loading the actual text. I've seen a couple sites that attacked these issues by loading a local font before changing into the custom font, but I lost track of these (rare-ish) sites to find out how they do it.How would I fix this issue? Will I have to use some form of javascript to accomplish this task?Thanks in advance! All answers appreciated!