For additional debugging, can you capture traceroutes to canonical-lcy01.cdn.snapcraftcontent.com and canonical-bos01.cdn.snapcraftcontent.com, and record the speed you get when downloading https://api.snapcraft.io/api/v1/snaps/download/99T7MUlRhtI3U0QFgl5mXXESAiSwt776_8268.snap?cdn=canonical-bos01 and https://api.snapcraft.io/api/v1/snaps/download/99T7MUlRhtI3U0QFgl5mXXESAiSwt776_8268.snap?cdn=canonical-lcy01?