Suits Affecting the Parent-Child Relationship or SAPCRs establish parental rights (called conservatorship in Texas), child support, and the terms of visitation with the child. Unlike divorces, there is no waiting period for entry of the order. This means that your case could be filed on a Wednesday and your agreed order could be signed by the Court on Friday. Of course, drafting the order takes time as does collecting your signature and the signature of the other parent.
If you and the other parent disagree about the terms of the order, then the case takes a very different trajectory and may require mediation for temporary orders, a temporary orders hearing, mediation for final orders and then a final trial. This trajectory causes legal fees to accrue, but sometimes an agreement simply cannot be reached.