Maintenance for the week of December 22:
• [COMPLETE] NA megaservers for maintenance – December 22, 4:00AM EST (9:00 UTC) - 8:00AM EST (13:00 UTC)
• [COMPLETE] EU megaservers for maintenance – December 22, 4:00AM EST (9:00 UTC) - 8:00AM EST (13:00 UTC)
Without Ambrosia, I was getting around 10 CP per day until possibly around CP 300 something, then it started to slow down. Now i'm getting maybe 1-2 per day, at around 700 CP. During double exp events, I usually quest like mad on my newly-level-50 alts and get tons of CP while turning in quests. I got ~100 CP this way during New Life festival.
If this is your first level 50 you will get a really big enlightenment bonus xp buff. I think I got almost 100 CP levels from that first buff. The daily dungeon quest gives good xp as well as regular questing. I finished off all of the mage and fighters guild quests with the xp buff active as well as the main story vestige ones.
I'm pretty sure @Deltia had said he took a character from level 1 to CP160 in 6 hours. I think he might even be doing a video on it if it's not already done.
A very active player can get CP160 in a day. More casual play style will get you there in a few days to a week. It does not take much effort to get the early CP points.
Deltia was probably very active during those 6 hours.