/usr/lib/linux-tools/4.4.0-53-lowlatency/perf is in linux-tools-4.4.0-53-lowlatency 4.4.0-53.74.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/linux-tools/4.4.0-53-lowlatency/../../linux-tools-4.4.0-53/perf