Bundler in RubyMotion seems slower

gistfile1.txt

Here are the steps I took to time the slowdown I'm seeing using bundler.  I timed "rake spec" because it was easier to time but the slowness is more pronounced when I just run "rake". 

1. Create a simple app with `motion create bundler`
2. Add 2 lines to Rakefile

    require 'bubble-wrap'
    require 'motion-cocoapods'

3. Force a compile with `rake spec`
4. Time it without bundler about 1.7sec

    $ time rake spec
         Build ./build/iPhoneSimulator-5.1-Development
      Simulate ./build/iPhoneSimulator-5.1-Development/bundler_spec.app
    Application 'bundler'
      - has one window [FAILED]

    Bacon::Error: 0.==(1) failed
    	spec.rb:526:in `satisfy:': Application 'bundler' - has one window
    	spec.rb:540:in `method_missing:'
    	spec.rb:156:in `block in run_spec_block'
    	 4:in `execute_block'
    	spec.rb:156:in `run_spec_block'
    	spec.rb:171:in `run'

    1 specifications (1 requirements), 1 failures, 0 errors
    rake spec  0.56s user 0.20s system 42% cpu 1.785 total

5. Add Bundler to Rakefile and Gemfile

    # Rakefile
    require 'bundler'
    Bundler.require

    #Gemfile
    source :rubygems
    gem 'rake'
    gem 'bubble-wrap'
    gem 'motion-cocoapods'

6. Force a compile with `rake spec`
7. Time it with bundler about 1.7sec

    $ time rake spec
         Build ./build/iPhoneSimulator-5.1-Development
      Simulate ./build/iPhoneSimulator-5.1-Development/bundler_spec.app
    Application 'bundler'
      - has one window [FAILED]

    Bacon::Error: 0.==(1) failed
    	spec.rb:526:in `satisfy:': Application 'bundler' - has one window
    	spec.rb:540:in `method_missing:'
    	spec.rb:156:in `block in run_spec_block'
    	 4:in `execute_block'
    	spec.rb:156:in `run_spec_block'
    	spec.rb:171:in `run'

    1 specifications (1 requirements), 1 failures, 0 errors
    rake spec  0.98s user 0.25s system 52% cpu 2.344 total