Pixi.js pixelates texture if too large - WEBGL ONLY

Hello, everyone. I am using an SVG file to render resolution independent textures. My device has a pixel ratio of 3, and so I set the PIXI resolution to 3 for a crisp display. My SVG texture becomes weirdly pixelated if the canvas it is rendered to is too large. This only happens when using the WebGL renderer. I have two comparison pictures: http://imgur.com/a/5bQxM

First one crisp (Canvas), second one pixelated (WebGL). The size of the texture is 1528x1528 and my screen resolution is 1920x1080.