No, if you are super hardcore you can finish empy in the same amount of time. You would just find ways to make gil and buy the currency to supplement the currency you can farm. Empy is just faster reward, but total effort will be less. I said this before, if you had no time limit in dynamis, you could easily farm it in the same time frame.

Right now, 1 relic cost around 75m due to the over farming of dynamis due to the easiness of it. I could easily make relic #2 by buying. It would take me 11 days, only because of the artificial wait times.

Even so, you will have a lvl 95 relic vs an 85 empy with the same leisure time. Likely will have 99 relic before 90 empy if you are leisurely as well.

Everyone always fails to include the time you spend camping the 25+ nm's before you even start to camp briareus. If you
're talking lesiure time, with and avg repop time of 90 minutes per nm, just how many hours do you spend camping those? or are you simply understating the time you actually do spend playing every day. At least farming dynamis, I know it's only 2 hours a day. I know exactly how many coins i will get on avg, based on time put in.

Also your quantification of 'leisure time' is very vague. Is that 1 hour a day? 4 hours? 6 hours? How long did it take you to make parties to kill the VNMS? how long did it take you to get t2 pops to spawn them? How long do you take to farm 1 briareus and to kill it every day? how many do you do per day? You maybe done with the 80 stage in 3 weeks you say, but sobek is gonna be another challenge for 2 people. Good luck doing the 90 version without farming cruror to brew as well as getting the actual pop sets. You might recruit others to help, but that will just add to the total man hours you spend. 2 people farming dynamis daily can complete one within 50 days or less. The more man hours you add the faster it becomes. Same with relic, same with empy.