So after I have installed the latest card driver version and forced using video card in prefrences isntead of the integrated one the problem was nearly solved. The windows mode smooth ideally, the web version lags for the first few seconds after which stabilizes to almost good(only from time to time hardly noticable jerks). But I have to made conclusion that produced output code for html5 is not satisfactory because similar functionality made with the help of dedicated html5 engines like treejs performed ideally with my outdated driver and former settings. The question is: it is inevitable “pay” for being crossplatform that html5 code is worse that that of treejs? is any work planned (or being performed) to optimize html5 output?