I got forza horizon 3 and had experienced freezing and massive frame drops and still no change. Now i own Horizon 4 and have installed on 2 machines xb1s and xb1x and i experience same problem plus sound glitching and cutsenes lags… Please dnt abandone this issue.
I have the same issue on XB1S. The opening cutscene just freezes and I can’t do anything. Audio works tho
I’m not sure if anyone else has this same issue as me but when in horizon life/online, if i happen to drive fast (past 200) for the most part. Bits of the road and map around me will start to disappear and my car will stop dead at 0. Its really annoying cause going fast is all anyone ever wants to do in a racing game. What really concerns me though is it did the same thing to me on horizon 3 right before my console died and i bought a new one which is now my S. Going into horizon solo for horizon 4 works perfectly fine… No problems at all. Just want to know if this is a bug issue that others like me might be experiencing or if its a hardware issue, which it shouldn’t be because in solo its perfect, just horizon life is where i experience that bug.
I’m having the same issues on PC. Random freeroam freezing that will go away if I tab out of the game, but will persist for 10-15sec should I do nothing. FH3 had the same problems that eventually went away (I’m assuming updates fixed it). High end specs, max settings. Going to experiment with graphics settings to see what could be the culprit.
I returned FM7… Sure hope I don’t have to do the same here 
I love these games…