The upload is likely more of an issue. I was stuck with an annoying ASDL setup for a while. Download wasn’t bad, but upload was extremely low. It also had no form of traffic shaping. As soon as one of our phones decided to back up our photos, the TCP return packets started getting lagged out. Basically webpages wouldn’t load/timeout while anything was trying to upload.
Long pings are annoying. Insufficient upload can break a lot of ‘modern’ websites.