toilet problem

And don't forget the dually

Unfortunately you have reached the life expectancy of your RV and must now buy a new one. :B

check the toilet flush valve also. We get units in quite often with bad/damaged or cracked toilet flush valves

Before you try the costly and tedious repairs, take a wire and probe the hole where the water is supposed to come out on the toilet rim. I replaced the valve with no improvement. The wire "repair" restored the full flow. Wished I'd have done that first.

I have an Outback and had to remove the supply line at the toilet several times before I got all of the trash out of it.

I would not rule out a pinched PEX line. We had one on our 2014 KZ TT. Dealer cut the PEX at the kink and installed a brass PEX coupling. The kink was easy to spot but I supposed one could be hidden anywhere.

Maybe try and follow the braided hose to where it connects to PEX. The braided hose could be kinked too as it is easily collapsed/pinched.

You might try unscrewing the swivel connector at the back of the toilet and seeing if the flow is okay. Could temporarily attach a faucet, extend a length of hose or PEX with a fitting on the end, or possibly let the water flow into a container.

Make and model of the toilet would be helpful.
Some Thetfords have issues with the control cable.

Not sure about your slow water, other than, maybe a line is pinched somewhere causing a blockage.

But in the mean time, RV toilet flushers work one of two ways: A pedal that pushes down only, or a pedal that pushes both up and down.

The down only pedal: You can press the pedal slightly and start the flow of water without releasing the valve in the bottom of the bowl. This will let you fill the bowl with water before letting the valve open. This helps get "everything" down ... especially if your water is slow.

The up and down pedal: If you push down on the pedal, water flows and the valve opens. But ... if you press up with your tow, water fills and the valve stays closed. Here again, fill the bowl with water before releasing the flush valve.

Hope this helps. I think you have a pinched water line somewhere.

are you sure the cutoff valve is turned all the way on if you have one?

Or a line somewhere has come loose, but there would be a leak if that's the case!