The Asus X553MA has an Intel Celeron processor family which is better than most notebook PCs of a similar type and age to it. Most medium processor core laptops that have been on the market for around the same time as it have an Intel Core i5 processor family. Notebook PCs of this age and spec processor families range from AMD E to Intel Core i7-3xxx.
Alternative laptops that have an Intel Celeron processor family currently available which you might want to consider include cheaper laptops such as the Lenovo B50-30, or the Asus X553MA (£249.99).
If the processor family of this medium processor core portable PC is not good enough for you then you might also want to look at the Asus X102BA (£179.99) (AMD A and cheaper).