I use iPhone X and iPad Pro for business and run ios12 on both. Screen time restrictions are on with safari disabled. I use CE browser to access the internet. CE browser takes 20-30 seconds most every time to load pages. I type my search into the bar at the top and hit return...and wait. It’s like the VPN needs an extra time or a push to connect... also many apps, if not all will not load until I open them, then go to CE browser to open a website so the VPN wakes up. This occurs on LTE and Wifi - there is no difference. Is this normal?