This has been a problem for some years now, whenever trying to resize any of the image windows inside affinity photo, the resizing is extremely slow and the movements will buffer so even if I let go of the mouse button, the resizing gestures will all execute and it doesn't cancel when lifting the mouse button. Even happens with a blank canvas.
This is extremely frustrating because Affinity Photo doesn't have "zoom resizes window" like photoshop does, so I have to manually resize several image windows when working.
Windows 10 Pro (latest), Ryzen 2600X, 32 gigs memory, 2x AMD R9 280X display adapters
affinityphoto.mp4