Old thread, but I was googling about this because I just installed TV12 on a freshly restored laptop that was eating the CPU. Nobody seems to know how to fix it. Revert back to TV10 (or even older). Newer versions are not made for older computers. Running TV12, the CPU usage on 2010-2012 era laptops is extremely excessive (50-60% on dual core), causing massive slowdowns when trying to do anything that uses the CPU. Running TV10, the CPU usage is manageable (1-5% with spikes to 15%, notably on mouse movement). Older versions will probably use even less CPU, but you lose newer features the further you go back (and some are just bugged at its core, notably with drag 'n drop file sharing). This is why I've never updated the older TV that I have running on old computers I've worked on, because I know the newer versions are resource hogs. You'd think this would be something they OPTIMIZE for, but no, it seems the company just disgregards performance with their feature creep and UI redesigns.
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