93 Cutlass Ciera Hard to start

The 93 Cutlass Ciera 3.3 6 cyl. is hard to start…takes like 3 tries to start it…even after changing…oxygen sensor, MAF sensor, coil pack, fuel filter, air filter, good plug wires, crank position sensor, fuel pump, sending unit…if idling low will stall sometimes. Mechanic said it’s slow getting spark up just when starting it…not sure why…can someone help? Thank you Sincerely for your time…

Sounds like the next place to go might be the ignition module. What kind of shape are the plugs & wires in?