help me fix my phone problems with a new rom plz

[cloudtp2]

hi, new to the forums, i think u guys can help me, i love this site, helping me alot so far. im new to wm, so id dont know how to install a new rom, so maybe u can direct me in the right direction and help me choose the right 1 for me. i have a pro2 from sprint
so here the thing, i love this phone, well i did. i got it when it first came out. i thought it was the ****. i was excited to upgrade to the 6.5 rom from sprint, thats where it all went wrong (i bet u heard this before). i even rec. this phone to may clients and coworkers, now they hate it (and me) lol. i try to defend it but cant cuz i know it sucks.
so here the problems, u heard them before. its slow!... i get the "phone out of memory" message all day, i have to soft reset alot. i get lots of mms, about 100 a day, and have to delete them, i hate to do that since i forget what the client was talking about. if i dont, it takes about 3mins to load the messages, (makes me wanna throw the phone) very frustrating!. i sometimes cant answer calls, the slider sticks! wtf!! is that all about. emailes are ok. i use alittle internet, facebook and forums like this, some youtube, nav is awesome.
i love the keyboard, im fast and accurate, but whats up with the screen when u tilt it sidways. i cant see the letters cuz there cut off half way, i have to press the keyboard button then it goes to normal. that should be fixed!
a client of mine has the evo, but i feel like im holding a brick, i dont like the onscreen keyboard. i like the pro2 just need to tweek it, i think.
i need a stable rom. 1 that was like the 6.1 but looks nice like 6.5 or better. i know this was long, but i hope u guys can help me get the rom i need. thx!!! hopefully i can be flashed this weekend . lol thx again