No. There are many factors that determine the speed of a site. We guarantee an improvement in the performance of your WordPress page after having applied the package, but we must take into account a series of good practices to avoid damaging the result of the optimization work carried out.
So, the performance of the hosting server where the web page is installed also influences. Although it is not mandatory, from AuralSolutions we recommend the use of our hosting plans to obtain better results, since this also allows us to exploit the speed characteristics that we offer through our SSD web hosting. The migration is free.