So, the days went by.
Due to their short time, Matt decided to spend five days training the physical body and ten days increasing the vampiric power, as it was the most difficult at this point.
So, after five days of intense physical training in which they both pushed their bodies to the limit, they felt rejuvenated and ready for what was to come.
The workouts to increase vampiric power must be getting harder and harder for both of them.
Already, a 1-hour training beating puppets does not give them too much power; it gives them a minimal amount, which was immensely reduced from the moment they ascended to the 5,000 power.
During these five days, they increased their vampiric power a little, even though that was not the objective, simply as a secondary effect to the increase in body power.
That makes those types of workouts less effective.