my build with app towers is faster by a min 

hint 1 mortar sam unit cross cover 1 sam face south one shroom boost with app and hunt guard crosscover obelisks with 4 owl nests use squire/speed guard 

hint 2 triple stack traps with e aura support the e aura will catch pylon for range boost plus get damage speed boost from buff beam below 

- afk with 2 boost summoner guards  one carrying squire and speed guard covering guardian towers  other damage and speed covering other units dropped buff beam out of build no need here but you will need your guardian pets active

e aura monk 6k damage 4k range only with obelisk support e aura shreds flying units also the ground units get smoked aswell see over 4400 kills

stats i used on the side can do with lower just increase clear time i could probably drop minions out of this what i noticed compared to having lts is the birds would melt down those big ogre health so they die before they come to the towers

total combat time 50 mins 

update added another obelisk this will sit infront of reflect not there to be boosted by any guardians just free tower increase damage up north plus get boosted from tower boost dropped etherial trap out of build