Hi @sylow, sorry to hear about your issues and thank you for the report. I am currently in contact with the developers to see if this issues has been reported elsewhere and if we can provide some specific guidelines for resolution.
In the meantime, it would be useful if you could check the presence of antivirus software and also whether or not the CPU load is the same for other Games?
I assume that the Tobii Core software itself is not problematic? Thanks for your patience whilst we try to find a solution for you.