Iron sights taking 1-2 minutes to render, causing me a massive disadvantage during gameplay.

As the title says really... when it comes to combat it's more of a task of shoot and hope when aiming down the sights.... causing a disadvantage when you're enemy hs full use of there iron sight or scopes.... today i have spent most of my day in live chat with staff... sadly none of them have been able to get this sorted, this issues for me is on all game types, all maps with all guns.

it is begining to deem the game unplayable for myself, the last staff member i spoke to sent me here to post the issue so here i am... as they have not had this issue yet reported to them, they say it's a new bug.... if so, i would love to see this sorted, to note i have tryed multiple troubleshoots, ofcourse none of them have worked.

I have tryed the following:

1. cleared cache

2. set my xbox date to nov 15 2005 *as told by staff*

3.deleted bf4 from my harddrive and then reinstall it

4.temp disabled the cloud saves

5. deleted my xbox account from the xbox to then redownload my acount.

i also took adds of my wepaons individually to see if it was one of the adds on the guns that was causing the issue, result = nada....

also i have tested this is test range, same issue applys.

Please get this sorted soon. i play as support class, don't care what anyone says, the iron sight is the most accurate, i need my iron sight......