I guess it depends on your budget for a new graphics card, Like the other poster.
I would go for a 1050 Ti or opt for a RX 470 Ati card.
If you find the cards, are still out of you budget that you wish to spend on the relatively new line of mid tier gaming cards then there are plenty of last generation cards being put up on ebay and alike for quiet good prices though being second hand if you don`t mind going that route as a solution to upgrading.
There are people selling off 970 cards, and the 300 Ati series cards as well for decent prices.
Both would be more powerful than the GT 630 card you are currently using giving better performance in Overwatch ect.
immanoobsie, it` just another thought and option to consider anyway.