SJ_Digriz wrote:But, you did provide some intel that is important. If your system is struggling with graphics in Sonar .. Cubase is probably NOT where you should be looking (I am a Cubase user). Reaper would be the most functionality in the smallest footprint. I'm not of fan of the interface and wildly inconsistent naming and goofy key combinations it takes to do simple things. On the plus side though, you can configure the crap out of it, and almost every function is mappable to a key command.
Laggy graphics in Sonar X3 was actually a common issue from what I remember. Cubase will probably work better, and if it doesn't, either disabling graphics acceleration using regedit or buying a cheap recent entry-level GPU will probably fix it.
From experience Cubase only really starts slowing down a bit with big projects, and even then (at least to me) it's not as bad as some people like to say. My computer is mid-tier at best.
Also note that they're currently working on some performance optimizations for Mac which may also benefit Windows users to some extent. These should make it into Cubase 9.5 which he'll get for free if he buys Cubase this month.