I got nipped by that default 25 compression too many times, so I changed it by editing Messages_JPG.txt, changing the line "Low Quality 25" to "Default Quality 100" 

//...........................................
//FileFormatIn_JPEG 24
JPEG
//...........................................
//FileFormatSaveMenu_JPEG 0
Default Quality 100
Low Quality 30
Low Quality 40
Medium Quality 50
Medium Quality 60
Medium Quality 70
High Quality 75
High Quality 80
High Quality 85
High Quality 90
High Quality 95
Max Quality 100