a little help here please!

so i use elementary os 8 currently. there is this folder i have in my internal hard drive having thousands of pictures stored in it. well the os is in the internal ssd. the problem i am having is whenever i open that folder the pc gets a lot of pressure, it lags too much. I think it is due to the fact that the pc has to load a lot of thumbnails simultaneously. is there a solution to it? like any other filemanager that would be good for handling a lot of files simultaneously in a folder at a time on screen. well i use the default file-manager pantheon provides. Well I have this idea that it will work better if I sort these pictures into multiple folders but is there a way avoiding this?