I am new with using quartus.
I am using an already big project FPGA.
This first compilation of the project took 1 hour and 22 seconds !!
The even more surprising fact is that clicking the compile button again - without any modification at all - again too 1:20 hours !
I use lite edition, version 15.1.
Why does it take that long - even without any modifications ?
Unless you choose to reuse the compilation results from a previous compile (incremental compilation) or enable an option to skip parts of compilation (smart compilation), the time for a compile will be mostly the same because it has to start the compile from scratch again. The Lite edition does not include the incremental compilation feature which could help save compile time.
There are a lot of factors which influence compilation time.