I really would not worry, and certainly not hire a tutor at such a young age.
Our experience bears that out. Our DS was really struggling with reading in year 1 (last year).
We met a couple of retired teachers while on holiday, who totally reassured us on this. All they recommended was to read to him, stories he really loved, and stop pressurising him to perform. What comes before reading, they said, was the love of reading.
They were totally right. DS started year 2 slightly behind on the reading front but then he opened the first Harry Potter book, and was blown away. Six months on, he reads several chapters of book 3 every night. His vocabulary and spelling have also improved.
Patience really pays off. Where I come from (Belgium), we learn to write before we learn to read, and nothing formal starts before the age of 7....