Due to the recent updates on the 737 and 777 which is truly fantastic, great job to the infinite flight team. I have realized that older devices tend to show an impact to frame rate when the updated aircraft are used.
Due to my dedication to fly and enjoy the updates would it be necessary to buy a new iPad?
If you are looking to have a high quality and good experience with Infinite Flight, buying a better device is probably going to be your best option unless you have a rather new device. Older devices, like you said, tend to only be able to run low graphics as well as low airplane counts, therefore possibly worsening your experience and making your graphics and planes look less depictable. Personally, I prefer performance over graphics, so if I were in your situation, I would lower my graphic settings, but if you’re looking to get the full experience of a nice cockpit and depictable livery, buying a new device, if possible, could/should be looked into.
Since you are using the most up to date device, I don’t believe upgrading will improve anything. Maybe try to check off Limit Frame Rate to start. I know of very few people who leave that unchecked but your device probably could handle it.