Prefereable air intake temperature for condensor-typed tumble dryer
From the way I understand them, condenser type dryers recycle the air rather than using a continuous supply of ambient air.

The air in the drum is passed across the heat exchanger to dehumidify it, then it is routed back into the drum. The heat exchanger is not used as an intake air pre-heater, it is solely for the purpose of dehumidification. Heat is transferred from the recycled hot air to the atmosphere, moisture is collected or drained.

If your's works differently and uses ambient air as a continuous source of "drying air", and the dehumidified exhaust is directed to the outside space (your living quarters), then the benefit of cooling it to provide for more efficient dehumidification would likely be outweighed by the need to heat it more for effective drying, since you did not complain about excess humidity conditions in your living space.

Either way, it is likely that significant engineering was involved in the design of the unit and the operating manual likely gives parameters for optimal performance conditions. I would say that unless directed to otherwise in the manual, any endeavours to alter the temperature of ambient air would provide minimal if any tangible benefit.