For the sake of these instructions, I will assume you already know how to create your own triggers, and change the names of existing triggers.

In the Skeletal Animation, the playback speed is by default 0.5. You can make the rose rotate faster if you increase the playback speed.

In the Morph Animation, you can adjust the final size that you want the rose to grow to in your trigger by changing the Amplitude Scale (decimal numbers are acceptable if you want it to be smaller than its base size).
And you can adjust the transition speed of the rose from one size to another by increasing or decreasing the Blend In (Smaller number = fewer frames for the transition = faster change, all the way down to 0; bigger number = more frames for the transition = slower change).

[Morph animation frames 0 to 1 keeps the rose microscopic/invisible/off. Frames 1 to 2 brings the rose to its full size/visible/on.]