Train Sim World 2

There is a hill climb in the middle of this scenario (immediately after talking to the signaller at Ditton Junction) which stalled my train an awful lot since you are starting from a standstill, had to replay this one multiple times. I'd honestly say this was the hardest scenario I encountered in the whole of TSW2 but I guess it's down to my lack of knowledge of steam engines.

I highly recommend making a save before you start the train again after talking to the signaller so you can attempt this again without replaying the 30 mins leading up to it.

I found this video helpful to optimise the train's acceleration
Managed to get up to 35mph using the advice at this point of the video, eventhough it's talking about a different hill climb altogether.
If you do this right, you should not be losing speed at all on this hill climb.

The great news is once you get over this gradient, there is nothing else stopping the journey to Crewe.