Cache was disabled for the test, however, the experiment was just really quick and not representative. I opened a random subreddit that had no image or video po

Cache was disabled for the test, however, the experiment was just really quick and not representative. I opened a random subreddit that had no image or video posts, so your mileage may vary depending on the sub chosen. This is also an anti-pattern, since you should make sure that user generated content can't bloat your website too much.