As you may be aware North Carolina and South Carolina are both members of the Drivers License Compact. This means that your South Carolina speeding violation conviction will be transferred to the North Carolina Division of Motor Vehicles.
Once the NC DMV gets this information it is placed on your driving record and according to the Driver Handbook convictions occurring outside North Carolina may result in your license being suspended or revoked just as if the violations occurred in this state.
In NC your driving privilege will be revoked for at least 30 days if you are convicted of driving any vehicle more than 15 mph over the speed limit, if you are driving at a speed higher than 55 mph.
Your driver's license will be taken for 60 days if you are convicted of a second charge of speeding over 55 mph and more than 15 mph above the speed limit within one year; or speeding plus reckless driving on the same occasion.
So it appears that North Carolina would suspend your driver's license if your South Carolina ticket was for more than 15 mph over the limit. Points are not discussed so you will need to contact the NC DMV to see if out of state tickets are assigned points or not. If they are it would likely be 3 points which is the amount of points that would be assessed if the offense had taken place in state.
To find out if you can reduce the ticket in any way is a question for the South Carolina courts, whose number should be listed on citation. Usually the clerk of the court can advise you if there is traffic school or some other way to reduce the ticket.