Welcome to the revolution where huge oversubscribing is the norm. Everyone sells 100Mbit, 300Mbit, 1GE internet or even more.. Poeple often start to talk about 10GE CPEs.. bigger faster.. its partially consumers fault but meh. I would many times would prefer rock solid 10Mbit connection that crappy 100Mbit connection.
But, luicky I live in big city with multiple ISPs offering. I have 2 ISPs at flat atm, one is ETTH (primary) and second is Cable for backup. ETTH is good, nice peerings, low RTT and very small <1ms jitter. Cable, well.. its cable. They expanded they peerings so RTT dropped, but jitter is noticeable. Its all right, its backup connection after all.
But, luicky I live in big city with multiple ISPs offering. I have 2 ISPs at flat atm, one is ETTH (primary) and second is Cable for backup. ETTH is good, nice peerings, low RTT and very small <1ms jitter. Cable, well.. its cable. They expanded they peerings so RTT dropped, but jitter is noticeable. Its all right, its backup connection after all.