At only 60 hertz, the 55HFL5010 has a fairly slow high frequency rate compared to most of the other TVs of a similar age and spec to this TV. The high frequency rates of large display diagonal TVs that have been around for around the same time as this television range from 50Hz to 900Hz.
We think you might also be interested in some of the alternative 60Hz refresh rate TVs currently available including the Samsung UE55J5500 which is cheaper.
If you want a TV with a faster high frequency rate then you might want to look at the LG 55LH604 (£499) (900Hz) which is also cheaper.
What does "high frequency rate" mean?