With print design the file size (kb) should never be a concern.
For raster images such as a tiff, Pick any two:
- [Small file]
- [High quality]
You can't have all three.
The answer to your question, is honestly -- Stop looking at the file size (kb) it is irrelevant for print design work.
If you need to transport the file, use a mechanism which supports the file's (natural) size, don't try and squeeze the file into some inappropriate delivery method. 210mb easily fits on a CD, a thumb drive, drop box, etc.... If you are using some online print service that won't allow a 200mb file upload... find a different service. Any service placing that restriction on uploads is not a quality service.
The notion that all files need to be small in kb/mb comes from web development and the transfer of digital images to end users. This doesn't translate to the print world. The print world has always used files at whatever size they naturally end up being. Print production has different technical restrictions than web production. It is imperative that files meet the technical requirements for print. It is not imperative that print file sizes be small.