if you set your mouse DPI to 8000 (Logitech G102 for 35 $), you can install your mouse model’s Logitech Software, so windows 7 allows to reduce mouse sensitivity enough even for the 8000 DPI-mode, so navigating the mouse cursor in windows remains convenient, but when tou try to navigate BP graphs (2D navigation with RMB pressed to navigate around grids background), it scrolls way too fast, just like if my sensitivity was set to 10-20 times higher. So Graph-navigating does not correlate with mouse cursor move speed. That is why I report it as a bug, it needs to be fixed.
Currently my workaround - is to either move mouse vary carefully (1 cm is like whole screen of scrolling distance) or change DPI back to 400-800 and then increase sensitivity in windows settings. Both workaround options do not feel convenient, so this needs to be fixed.
By the way, after i installed Logitech sowftware, setting minimal sensitity in windows setting and switching to 8k mouse DPI, mouse now moves pretty convenient - whole mousepad (cover, horizontally and vertically) for the whole monitor’s screen of mouse moving. So the sensitivity in windows feels pretty low, which i like, only Unreal Engine’s Graphs scrools way too fast with 8k DPI.