Why are your photos so blurry?

Mainly because I’m emailing them from my phone to my office computer so for speed I’m keeping them low res (I’m trying to fit adding crags and routes on my lunch breaks and evenings and there’s quite a few to add!). The images are to identify routes so they’re functional rather than aesthetic - I’m not expecting any awards! If it’s an issue, I can reduce the amount I send in one go and up the quality? I was trying to add some tonight but it kept failing. Is that because I’ve been blocked? Please let me continue adding as there’s some fairly spectacular areas I still need to add that I’m sure people would appreciate. Let me know if you need me to change image quality? Thanks, James