205 isn't overheating, and having lower oil pressure after warmup is normal.
When you come to a stop where does the temperature hit? If you are actually overheating then when the car stops with the engine still running the temps will continue to climb until something pops.
'04 Mach 1. Built. Turbo. 667whp/631wtq
'06 Focus. Built. Turbo. WMI. (sold)
'03 Mach 1 : 12.61 @ 106.59 (sold)