I've never had any trouble downloading big file games. The most any game ever took is a hour. Tex Murphy: Tesla Effect,took about 1/2 hr.
Well lucky you to live in a part of the US where they actually have decent service. But you should be aware that there is a gross disparity in bandwidth speeds in different parts of the United States.
We tried to get a 24 Gbps speed when AT&T U-Verse offered it. But the router kept losing connection every second or two. Since telephone service was part of the package, we had no phone to call up to complain. We were over a week without any phone service. We had to use the neighbor's phone (luckily they hadn't "upgraded") to call AT&T, and I'm sure our neighbor got tired of seeing us. AT&T replaced the router, replaced the cable to the router, all for nothing. We had to keep reducing bandwidth until we got a reasonably stable connection -- which ended up being only a fraction of the bandwidth they advertised. It is not completely stable -- I can see from the router stats that it has disconnected and reconnected 4 times already today. The cables in our part of the country simply can't sustain faster connections.
I have RR as my internet.
Your ISP makes no difference. If you live in a part of the country with old or poor quality cables, you will get a garbage connection and low bandwidth. Your ISP can't give you better bandwidth than what the cables in your neighborhood can sustain. And if you happen to live in the vicinity of a radio station or wireless tower, that's additional interference that will break off your connections. The only thing that will give a good connection in areas like that is to replace all copper cabling in your neighborhood with fiber, which does not pick up the radio/wireless signals. Of course replacing all the cables in your neighborhood is not something that the average homeowner can do themselves.