The FIFA Mobile Coins curved corners
On the Android side, things were less than perfect but still mostly fine. The S9+ conducted the game at max settings but would occasionally drop frames quite badly. The FIFA Mobile Coins curved corners of the screen also cut heavily to the UI of the game, which was obviously made for square corners. The 5T did better in that respect but conducted like this S9+. The Redmi Note 5 Pro using its Adreno 509 was set to Medium configurations by the match, which it worked fine but I discovered I could allow it to run at the maximum HD setting and it was still perfectly functional. Finally, that the Redmi 5 with its Adreno 506 needed to be conducted at minimal configurations, but it was was playable.
It tends to vary, drop and even at its best is only 30fps. On a PC with a mouse it would be profoundly infuriating (as some players with less than stellar rigs will tell you) but on mobile with all the slow controls and slower gamers it's less of a deterrent.
What I actually wish was better is the noise. The sound is just trash, with exceptionally compressed sound clips that if played over headphones seem as though they are coming from your speaker. Vehicle noise in particular is bad. Your footsteps will also be loud and considering how much time you spend walking or jogging it will begin grating on you after some time. I get that you're supposed to listen to Buy FIFA 19 Coins footsteps of your competitors to understand they are nearby but there is no reason to listen to your own footsteps so loudly.
Network functionality was fine but it is not a big deal. Latency was consistently above 100ms for me personally, usually over 200ms and at times even over 300ms. On PC this could ruin you and you would not even learn before 1/3 of another later. On mobile I didn't feel that it made a difference. It's worth considering that this could go up if you're playing outdoors on a cell connection.