I noticed in Chrome based browsers that when I copied an image to clipboard, whole UI would freeze. For large images it would become unresponsive for 5-10 seconds.
I dug into the source and turns out they PNG encode it, I believe at highest compression. (The comments indicate this is something to do with how old versions of MS WORD handle transparency..?)
My "workaround" was to change the compression level to 0. Not ideal but I only needed to change 1 byte in the exe, and I was glad I didn't need to rebuild all of Chrome!
Firefox has 0 lag and has the benefit that you can paste directly into file explorer, because they put the original image file into clipboard instead of image data.
I dug into the source and turns out they PNG encode it, I believe at highest compression. (The comments indicate this is something to do with how old versions of MS WORD handle transparency..?)
My "workaround" was to change the compression level to 0. Not ideal but I only needed to change 1 byte in the exe, and I was glad I didn't need to rebuild all of Chrome!
Firefox has 0 lag and has the benefit that you can paste directly into file explorer, because they put the original image file into clipboard instead of image data.