Vokes said the footballs were coming out earlier than ever at Barnfield as the Clarets look to get up to speed for their European assault.
"It comes around quickly. We normally have a five or six-week pre-season before the first competitive game, but it's almost halved this pre-season," the Wales international striker said.
"It's important to get used to the ball and back familiar to football and 11-v-11 stuff quite early, as well as doing the hard work and the graft in the running to get the fitness levels up.
"It's changed the mindset, you normally get 45 minutes and 60 minutes in games and build it up, but now it's important to get some minutes in ahead of the game.
"We've got a few friendlies before that so I'm sure the lads will get the minutes they need under their belt."