Perfect ROM Help

I'll try and make this simple because I sucke at explaining myself lol

EVERY ROM I try I have major issues, to simplify
If the rom has working native tether and it's normal speed (30+mbs) I have NO sms, I can send all day but not receive.
If a ROM has perfect working SMS like stock B1 or what ever one I just odined back on then tether won't work. Even with WiFi tether router app...it works the first time then never again.

I was just using CM12.1 KLTE from their site and all was perfect until today ZERO ability to receive texts/sms I can't win.....I just want basic functions and tether at normal speeds...my network speed with CM12.1 I was averaging 40+mbs all day...I'm within a mile of 3 LTE towers :)

When tether does not work I average 0.12mbs....yes dile up is faster....

Any Rom out there that has both...I've even tried variety like Galaxy Project...I can't find the perfect rom.

I don't need millions of tweaks and customized features....
GPS
Tether
Basic phone fetures calling texting browsing

That's it
Any advice is appreciated...I'm not dumb I've rooted and installed hundreds of roms over the years but this is beyond me...maybe S5 is pos lol