The Win CE Image Compressor can compress the size of the Win CE Image to the half without any negative effect on the startup time of the Colibri. The Compressor tool isn't part of the BSP, but it can be purchased, please contact our support for details.
Standard Toradex Win CE images already compressed except for Colibri Vybrid images.
Depending on the modules CPU specification the startup time can be heavily reduced. Here some examples: