Yes, I can confirm the same problem with the ruby.exe being almost always on 25% CPU
It's a Ruby software development kit. It uses a lot of memory which is normal. If it bothers too much, I would suggest upgrading to Gold, we'll host your robot on our cloud hosted VPS!
Here's a better idea, you don't
need to upgrade to premium software design platinum tier, it's free: fix the bot so it doesn't use 100% CPU when it trades once a week... it's not logical to "calculate" billions of operations per second when the actual decision is required once every few hours.
I don't have a copy of the bot so I don't have any details but: Ruby is not the fastest language out there (and this bot appears to be written in it), and it is especially
slow on windows.
Besides that this bot is supposed to monitor the market constantly, this way the bots tries to make profitable trades (it needs to process all new trades coming in). Though this probably should not consume as much recourses I guess.