Compiler settings

[BG 7]

Last time the size of our freeware backgammon program 
compiled with QB64 v.2.01 was 20.972.544
compiled with QB64pe v.0.80 was 20.987.902

Although the exe-file is a little bit bigger I believe that the time for compilation
was shorter with QB64pe v.0.80.

Concerning QB64 Phoenix Edition 0.80:
are there any (new) settings in order to optimize compiling
resulting in smaller (or faster) exe-files ?

Where can I find any pieces of information about compiler settings ?

Thanks !

[bplus]

It's been discussed in a couple places already:
https://qb64phoenix.com/forum/showthread.php?tid=532
https://qb64phoenix.com/forum/showthread.php?tid=534

I think X first line compiler settings is same as saying -O2 in C++ Compiler Flags as DSMan195276 answered my question. (See my screen shot in haness thread =534)
I get 100,000,000 Integers evaluated to first factors for prime test/sieve in 2.7799 secs compared to over 4 secs before using C++ optimization. Pretty significant improvement