Direct Deposit file slow creation in 2018

Two clients have reported that creating the Direct Deposit file (for MANUAL sending to the bank) has slowed considerably in 2018.  Both clients are on 2018 Standard - one on update 3 and one on update 4.  Both are on standard networks, not Citrix, etc.  One client is reporting it takes almost 10 minutes to create the file, which used to take about 1.  Anyone else had this issue?