Hi, I was doing some google searches a month or 2 ago to figure out why my dopus was suddenly performing very slowly. I found some forum responses that apparently led nowhere and I gave up my search then.
Until it dawned on me, that perhaps the laggy scrolling was due to some opacity related stuff. My first thought was, grid lines. I went into the options, and sure enough, disabling grid lines completely improved scroll performance 10,000% (exaggeration of course, but the lag completely disappeared).
I then decided to re-enable grid lines and set the opacity to 100% for both. This worsened scroll performance significantly, which is strange because 100% opacity shouldn't be creating such a strain on my PC.
One thing is for sure, disabling grid lines definitely made the most significant improvement. The laggy scroll performance practically disappears.
Setting an opacity value to anything less than 100% results in severely laggy scroll performance.
Setting an opacity value to 100% results in moderate laggy scroll performance.
Suggested workaround - If a user chooses a 100% opacity value, then switch to a less performance intensive calculation to achieve better scroll performance.
Even better suggestion: Eliminate all performance problems by reprogramming this entirely, as it seems to be poorly implemented based on my very non-thorough deduction.
Hope you consider!