It depends completely on your preferred playing style. If you really want to increase your level as fast as possible, you can do it but it is still going to take quite a long time to reach the maximum veteran rank. If that is not important to you, it will take even longer.
In my case, it took me a couple hundred hours playing time just to reach level 36, which is about how quickly I usually progress when playing Skyrim. When I play TES games, I'm not trying to accomplish any particular goal or reach a maximum level, I simply go where I think my character would want to go and do whatever seems like fun.
I like having a somewhat different experience with each character, so if I'm playing a 2-handed barbarian, I'm not going to do the mages' guild quests with that character, etc., and a lot of the quest content is still fresh for the next character.
In my view it's different from other games where people feel they have to rush and can't enjoy the game until they get to the maximum level. There are so many different quests and things to do, I would never be able to complete all the content in the game. I'm not even sure I will ever reach the level cap with any character