Every defragmentation tool has different algorithm to defrag the drive. Remo MORE Drive Defrag has two methods to defrag the drive, viz. Quick Defrag and Deep Defrag. Quick defrag would only defrag the fragmented files on the selected drive. Deep Defrag defrags the fragmented files and also moves the entire data to one part of the drive (starting part) and leaves the rest as free space in a continuous way. Hence, the files would be arranged instead of scattered around the hard drive. Doing this increases the system performance by allowing OS to access the files easily.
Remo MORE Drive Defrag tool uses the Deep Defrag method to defrag the drive which ultimately helps the PC to boost its performance.