Actually, the economy has been cranking for years under W. This despite a vicious war and constant attacks.
The economic expansion was unhealthy. Other than an oil and commodity bubble, a real estate bubble, and a government contractor bubble, there wasn't much doing well. The Nasdaq is still below where it was when he took office and it had already undergone a steep correction by 2001.
The only bright spot during W's tenure was the tax cut authored by former congressman Bill Thomas in 1983.