Termination of office lease before its expiry without paying penalty

We have been using an office for rent in Al Karama since 2014 and renewed contract in August 2020.

Now, since business is less we wanted to vacate the office because the rent was high and we informed the real estate office but they are saying we need to pay 2 months rent for free.

Also, they are saying they will take AED 8500 old security deposit for damages and repair of office but there is no damage in office and it doesn't even have any interiors or partition works done, just open office.

Kindly advise if we have any rights to vacate without paying additional payments.