Thank you very much for your quick reply!!
I Tried everything and I could finally use the draco and the blender compressor, it helped a lot , going from 90 mb to 150 kb but of course I had to reduce the vertices and change a bit the model, I also discovered that when I add the smooth modifier before the subdivision modifier and then apply a Normal of 4 instead of 10 (when compressing) it reduces significantly the size but its not enough, as my computer started to emit a little sound when visualizing the scene on the browser.
Yesterday I asked someone to test the scene in their device, and it took twice the time it took for me to load (black scene), can be perhaps the FPS (since I added a cloud and a flashlight animation, and if yes how can I improve that?
Thank you very much in advance!