I replaced thermostat , coolant sensor and flushed radiator but car still running hot

Good Morning I would need more information before I could give you an answer to your problem. The first question I would have is how long has this been going on ? Did it just start when it got real hot out or has it been a problem for a while ? Next is the cooling system pressurizing after the engine has been run ? Does the problem happen while driving or just when sitting in traffic ?