Performance wise, the best one I've tried is Splashtop which is also free for personal use on a lan. Business pricing is pretty cheap imo as well. I used it to

Performance wise, the best one I've tried is Splashtop which is also free for personal use on a lan. Business pricing is pretty cheap imo as well. I used it to remote into a machine ~3k miles away (different country) and didn't notice much cursor/kb latency at all. In the past I found I was able to play some games on a windows machine remotely across campus from a terrible netbook running arch at like ~30 fps. Every other tool I tried had too much latency or was too poor quality of a connection to make that viable. Edit. I may have been using the windows client through wine, I don't think they had an official Linux client at the time.