Replace the hoses first before playing around with pump adjustments.
Most plumbing supplies (Tradelink/Reece) dont carry 3/8 hoses as stock, so buy some 1/2 hoses and 1/2<==>3/8 reducers. It does the same thing and can work out cheaper.
Depending upon the age of the machine, Id recommend removing the pump and descaling it (soaking in descaling solution).
Not sure of the Faema designs, but some types of pumps have a small wire-mesh filter on the inlet side - this could be clogged and restricting flow. If it exists, normally you cant see this wiremesh filter and it sits inside of the brass union the attaches to the pump, e.g. you have to remove the hose and union to "knock it out".