The Transformer Book T200TA has an Intel Atom processor family which is better than most laptops that have been around for around the same time as it. Most 2 in 1 laptops that were released more than two years ago have an Intel Core i5 processor family.
An Intel Atom processor family is in fact the worst processor family across all 2 in 1 laptops that came out around the same time as the Transformer Book T200TA.
The best processor family amongst similar types of laptop is Intel Core i7-3xxx.
If the processor family of this portable PC is not good enough for you then you might want to consider the HP Pavilion x360 (£210.00) (Intel Celeron) which is also cheaper.