honestly i love the game, but allthough i have an ancient device (ipad third gen) which is officially supported, the game sometimes is unplayable. i even upgraded to ios 8.3 (which was a big mistake) to check if something changes, but the games starts with ca 10fps. then, when i am ahead, it runs quite smooth, with ca 25-30fps (smooth is too much, but it remains playable...). but then there are those occasional hickups, which can ruin a game. especially after a jump, or when collecting the geocache stuff.
Go to quick race mode and choose the second vehicle. Select the Hawaii level and choose free ride mode. Drive in top the volcano and press the reset icon. Enjoy.
Apple TV? Love this game. Big Invictus fan since the 1NSANE days. Would love to buy this on Apple TV...