If you want to run your Galaxy S5 at the speed of light, you should definitely check out the Exodus ROM.
Based on latest Android 5.1.1, Exodus ROM is an excellent AOSP ROM (What is AOSP?) that combines speedy performance, great battery life, and customization. First, you will find excellent performance and extract the most out of your Galaxy S5’s Qualcomm Snapdragon 801 processor, getting near Note 4 performance without any overlocking (near 49K on Antutu).
For customization, you will get fully-customizable navigation bar, status bar, LED notifications by color, system animations, and much much more. ROM Control settings bring you even more stuff like LCd density changer, system app remover (for advanced users only, make a backup ROM before using this!!!), ad blocker, and OTA ROM updates.
Overal, Exodus ROM is another excellent choice for those of you who want to be on the best and latest Android 5.1.1 so give this guy a test drive this week(end) and do let me know what you think!
Download Exodus ROM for Galaxy S5 (for SM-G900F/I/M, T-Mobile SM-G900T, Canadian SM-G900W8)
Download Android 5.1 Gapps (DO NOT USE older Gapp as you will FC!!!)