Custom Line Nashville Nylon NT : Is great..but

The sound is sweet. I tuned 39 times (yesterday i get it) and the strings is soft, maybe for this.. the sound have a little unbalance, the 6th -5-4 strings is little lower the volume and i need to check the saddle if is flat.. this is not good (the fretboard is very good job and the saddle very cheap?) the action is like electric guitar in the limit of hi action but i play easy..and is easy to make it lower the action.. i hope for the tuning the problem is the strings. the weight is not heavy...i don't know why people saying this.. i get the package from the courier and i freak out thinking they didn't put the guitar inside..i have 6 guitars and this is not in heavy category.😳