Cherry shrimp can tolerate hard water. They have a real problem with copper, like all inverts, so if you think there is copper in the water get a copper test and find out. Copper water pipes are not a problem, not is copper in food unless it is very high. Dissolved copper compounds are what causes issues.
Daily water changes are not needed and may make it worse. Usually they only need topping up and very few water changes, unless they have fish with them. They have very little bioload.
If you don't have a sponge filter, consider getting one. Once the filter is mature, they love to pick and feed from sponge, and it will do all that is needed for filtration.
Were they adult shrimp that you got ? Adult shrimp don't adapt very well. But it is best to drip acclimate all new shrimp, as it helps avoid the shock of changed water. You can find out about that online, there are a couple of ways to do it, by scooping out water or adding it via an airline set up as a siphon, dripping very slowly.
What is often a problem is a difference in TDS, total dissolved solids, between their old water and the new. A TDS meter will measure this, they are used by marine keepers and many shrimp keepers. As I said, adults do not always adapt so well, and sometimes the next moult is too hard on them and they don't live through it. Berried females often lose their eggs, but can breed again if they live. Btw, if you see a moulted shell, leave it in there. They eat them to recycle the calcium. They also eat each other, if one dies, and if you think it died of illness, don't allow the others to eat dead ones. If not sick, it's not harmful for them to eat dead tankmates, though it might be a bit gross.
With water this hard you don't need any calcium supplements, in fact, the one issue with very hard water is that it can make moulting too difficult. The shells are too hard and the poor shrimp get stuck inside, as they can't split them to get out. But I keep Neos in water with very similar readings to yours without any issues, so I doubt that's it.
Does the pH remain that high once in the tank ? Usually it drops a bit within a day or so, does yours ? Have you left some in a bucket for 24 hours and tested to see if it is lower than when it comes out of the tap ? Your temp is just fine, they like it cooler, not warm. They don't like acidic water, that is for Crystal shrimp, not cherries.
If at all possible, buy juvie shrimp, not adults. They ship better, acclimate more easily and are overall more tolerant.
Feed very, very little, two or three times a week. A whole algae tab should be broken into many very small pieces, give one at a time. A dish for food helps you see if it all gets eaten, also keeps it in one place. A new clay pot saucer or glass or ceramic are great for this. They eat a lot of biofilm, so feeding is not necessary too often.
Shrimp like plenty of plants and hiding places. Should have rocks, wood or many plants to hide in and pick from. The safer they feel, the better they do. Moss is a fave, they like to pick at it.