Struggles to load chunks

When playing on my friends and I realm , we have been experiencing some very frustrating issues with it for a past month or so . We have it time in hopes it be fixed but it lead to me reaching out hoping to fix the game . When we go on our Electra’s and fly anywhere in the world any biome and and time of day. It struggles to Load chunks it says “ chunks still loading. You may encounter some mild performance issues “ and while flying you can see through the entire world and you hit an invisible barrier which lead to completely stopping your flying Momentum and its creating near death experiences in flying into a wall or mountain . We got to the point where flying is now a MUST in order to find more joy in your game and getting recourses to build and etc. the attachment below will help .