The problem I’ve had with looking through a large number of micrograph in CryoSparc is that it may take >1 s for it to load a specific micrograph, which is much longer than you need to look at the image to assess quality. Thus, my solution, albeit much less elegant, has been to do a Generate Thumbnails job to a low resolution (let’s say @1 of 170) and then open the output folder, delete all the @1 thumbs and load the resulting @2 thumbs in an image viewer in batches of 50. In this way, for me at least, this means I can get through them a lot faster by just closing the viewer windows while scanning over the images briefly and saving the bad ones in a subfolder. Then, as Manually Curate Exposures can sort the micrographs alphabetically, it’s just a matter of finding the names in the subfolder and rejecting them.