George, the cores running should not affect your other activities on the machine, especially if it is set to medium or low. The folding core is only able to use the unused cycles of your computer. Its process has a 'nice' value of 19, which means it yields to any other process looking for CPU cycles.
To uninstall you can try something like this:
I'm not sure if that is the exact package name for Mint, but you can google if it isn't.
I'm sorry I haven't been around much to help lately, I've been stuck in Laos for nearly 2 months with Lee and the kids. We came for a visit to her family and this whole virus thing happened; Daniel and I went to our holiday home, but Lee and Anny got stuck in her mom's village because the government stopped all inter-provincial travel. We've been apart for about 6 weeks now, Daniel and I in Vientiane, and the girls upcountry. Luckily Daniel is here so I'm not too alone! The girls *should* be able to travel after the 10th, but none of us can return to the house in Thailand until they open the borders, which have been closed for a month now. I have a friend looking in on the house each week for mail and bills
Strange times we are living in. There has been a 10 pm -5 am curfew in Thailand for several weeks now, and [sadly] a ban on alcohol sales! But not here in Laos, we can buy anything we want, but practically nothing is open in the evenings. Restaurants, bars, etc are all closed until further notice.
Fortunately Laos only has something like 15 cases if the virus in total; I guess they made a good move closing the Thai borders so quickly [Thailand has roughly 3,000 cases].
Anyway, the Internet here is not as good as in Thailand, I have to look into finding a better provider. It also goes off for hours at a time sometimes [I think there's heavier than normal traffic with schools and businesses closed]. My kids are on their summer break from school now, and were supposed to return in the first week of May, but the government has pushed back school opening until *at least* July 1, so they are going to be around the house pretty much constantly until then. They might have to take online classes to make up for lost time and/or study weekends for a month or two after schools actually open.
We haven't decided which house we're going to stay in until the kids return to school. For now, we have to be here with all the travel restrictions in place.
EDIT: as I write this I see that the US has now gone over 1 million cases of the virus; that is 1/3 of the world's 3 million cases. And 200,000+ are now dead from it. I count myself lucky that I'm in a relatively low-risk area.
To everyone: stay healthy and follow the basic rules...