No. The fuel system should keep pressure when the car is off.

Then there would be fuel pressure for starting.

One problem is an "internal leak". That is a fuel accumulator or damper which has a leak and returns gas to the fuel tank. Thus the fuel pressure does not hold when the car is off. AKA an "internal fuel leak".

This is discussed in the factory service manual for the internal fuel leak test. You place a fuel pressure gauge on the fuel distributor, turn the car on, then off. And see if it maintains pressure for a certain amount of time.

You would also want to check that the fuel pressure is correct when the car is running.

So you may have OK fuel pressure when the car is running, but leakage and lose fuel pressure when the car is turned off. Thus takes longer to start up.