Smile [Q] Quick & Dirty advice needed

Dear friends. Just walked through several sections but it really confused me....

Some of you might solve up my issue in less than 30 seconds.... Please help me !

Question:
Which one is the fastest, fully functional Rom for the S5830 available ?
(if there is a Rom / a few Roms that can be called the fastest ones)

I found so many different Roms here and I canīt flash and check them.

Thanks for your kind help which I really appreciate.