That's what it sounds like to me. When I stuck a Brembo 19x18 master cylinder on my 03 SV650 it changed the brake lever feel (and power) due to the ratio between the master cylinder and caliper pistons changing so dramatically.I’m assuming due to the piston size increase it could be just how things are.
There are online calculators that can help find a ratio to get it back to where it was if you want, or you can get used to what you have now. Personally, I like a softer lever; other folks prefer a firm lever. If you try it out and just really don't like the new feel, the only option is swapping master cylinders to restore the original ratio.