AMD APU's are fairly weak, they will bottleneck almost any new GPU. Even more with CPU demanding games.
BUT, IMO there's no reason for you to get a weaker card. If you can afford it, definitely get a RX 480 or GTX 1060 now, and then save up a bit to make a CPU upgrade.
That way at least you will have a decent GPU to handle almost any CPUs out there instead of getting a 1050Ti that may bottleneck a powerful CPU.
Don't get worse tech just because of a bottleneck, IMHO