Takes too long to start?

Hello, have you replaced the Fuel filter? I assume you're monitoring fuel pressure at start up, or are you having to crank the engine over for 10 minutes?

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

Okay, I see, yeah there should be a 2 second prime at key On, So if you can access the wiring harness with dropping the tank, check for 12v and a good ground at the fuel pump connector, I will pull up some wiring diagrams for you, I would use a test light hooked to battery positive and touch the test light to the engine block, and body, and see if the test light is lit up brightly, that will at least be a quick check on the Ground circuit, although it's not a fully loaded test, it will tell you if there is a corroded ground strap somewhere.
Here is the fuel pump circuit to get you started, I'll post some others as well. But check these grounds for the pump and the PGM FI relay.

You can try running another temporary ground wire from the pump's ground (black wire) by back probing the fuel pump connector, so you're adding another ground to it, and if the pump starts right away, you'll know it's a grounding issue right at the pump, or if it has something to do with the wiring to or from the PGM FI relay. There is 1 connector between the relay and the pump C415. I will look for its location.
Also, the aftermarket wiring diagram is incorrect, the actual Fuel pump ground is G551. I will locate that as well.
G551 is down on the driver's door sill, looks like you'll have to pull back a small section of carpet. There is also a water intrusion TSB for that location, so see if there is any moisture under the driver's side carpet.
Diagrams 4, 5 show the affected area for possible water intrusion. So, check under the driver side dash area for any corrosion, especially if there is a fuse panel located there.
Connector C415 pin 4 is in series to the fuel pump. You can see it is Diagram 1, 6, and 7.

If you have a test light, just put the test light in as a substitute for the fuel pump at the connector, Using the Fuel pumps power and ground, If the test light is lit brightly then you have at least good wiring back to the pump. Although it is not a fully loaded electrical test, it will tell you if the ground or power supply is weak.