The group have been told by Polydor Records to rework a number of songs before the label is prepared to release it.
"We've been asked to re-record part of the album because we've made a dense, psychedelic record," singer Jamie Reynolds told The Sun.
"We've made a really heavy record and it isn't the right thing for us - I understand and know that.
"First and foremost, we're a pop band. I haven't thought about that for a long time, and now it's in the forefront of my mind."
The group, who released debut album Myths Of The Near Future two years ago, admitted that they are now rushing to get their new record completed.
"We've got another four weeks and at the end of that time everything should be dealt with," Reynolds added.