Minecraft Texture Menu Screen Delay on my iPhone 6

MCBE, Uhh.... Hi.... to start things off there is this Main Menu Load Delay on my iPhone 6 and i thought if it was the Texture pack i’m using but no.... i redownload my Mcpe but it’s really Delay in this Delay i can’t make a Minecraft World it takes like A Minute or more than that.... Please Fix this one THANK YOU SO MUCH