XAMPP, WAMP, SIMILAR: Slow speed with xdebug

I use XAMPP on windows 7, with Visual Studio and XDebug.
But in 2 years not solved the big problem, and now im very frustrated.
Localhost WordPress websites in my localhost xampp server are very too slow.

Load a page take 3-4 seconds with XDebug enabled, 1-2 seconds if disabled.
This is incredible for many reasons like:

1) My PC is super fast: 2xSSD, 16GB RAM, 8CORE CPU, but XAMPP not use my power and stay slow.

2) When website is live on a shared hosting of 80$/years, it is more fast.

With this situation performance seem not related to PC power, so I think if i have for example 128GB RAM, 10xSSD in RAID and more, performance stay same. But how can be this possible?

I already tried all solutions found on web:

1) Enabled PHP accellerator (not change nothing)

2) Enable / disable lots of php.ini options

3) Encrease php memory limit

4) Change host file of windows.

Nothing improve performance. I not think i will found a solution, but if there is someone that can explain me why hardware can not improve performance is almost a useful info 🙂

Thank you!