Answer 1

Hello, Keshav M !
ASP is a compiled language in which components are wrapped by some framework (which are also compiled) and which directly calls the OS functions.
The execution speed depends on the speed of the machine code access to the same code of components that are processed through the code functions of the framework by the operating system functions codes that are intelligible to the processor.

PHP is a scripting language. This means that he needs some interpreter of all that is written in these scripts. The speed of execution depends on the size of the scripts, the speed of "translating" the text of scripts into some pieces of code that can not be optimized in any way, and which therefore turn to OS functions.
P.s Conclusions you can do by yourself
https://www.sololearn.com/Course/PHP/?ref=app