Slow as crap

I just reinstalled the app and it is so slow my internet is good but the app is slow also the guns when I download my guns it takes forever and some of them crash plz fix that and add a download button to it so I dont download every single one at a time please put a download button like back then where they just download like I have 253 guns and I have to download every single one and it take forever

Mason_Hawkinson about iGun Pro - The Original Gun Application, v5.23