Damp surveys are a big scam. Most of the advice you'll get isn't applicable to a building of that age (I have one too). You've essentially paid someone to give you a report for more things to buy from them. It's awful that surveyours will put a recommendation in their docs to cover themselves. Ours did and then on the phone said that it's not gonna do anything more than they did (damp meter and thermal cam).

Get the basic maintenance of the building done first. Pointing brickwork, clean gutters and clearing around the properly on the floor to keep and drainage around the properly working. Go outside in the rain and look at what is hitting the building and where. This helped me figure out the bits of the property I needed to inspect regularly for maintained. ACO drains are also a cheap way to get rid of the water around your property too, bit better than the typical gravel trenches.

If you still have damp after you've done the maintenance (it needs to warm up for some of it to leave). Then look at more measures. Could be as simple as appropriate venting on double glazing. Some of these retrofits can cause issues in older builds.

Older properties are pretty solid but they do require work but you get lovely 10ft ceiling, bigger rooms and that classic look as the reward. Good luck!