Does DrawRotatedObject() have poor performance?

So I am using this wacky code to randomly select from 1 of 4 bitmaps and 1 of 4 rotation angles thus giving me 16 different looking images displayed randomly which creates a nice electricity effect for my shield. This works great on my Roku 3 but I was just testing on my Roku 1 today and well the performance is horrible.

                if this.shield_on
                    if this.shield_animation_timer.TotalMilliseconds() > 50
                        this.rnd_shield_old = this.rnd_shield
                        this.rnd_shield_rotation_old = this.rnd_shield_rotation
                        this.shield_animation_timer.Mark()
                        set_shield_animation:
                        this.rnd_shield = cint(rnd(4)-1)
                        this.rnd_shield_rotation = 90 * cint(rnd(4)-1)
                        this.x_offset = 0
                        this.y_offset = 0
                        if this.rnd_shield_rotation = 90
                            this.y_offset = 150
                        else if this.rnd_shield_rotation = 180
                            this.y_offset = 150
                            this.x_offset = 150
                        else if this.rnd_shield_rotation = 270
                            this.x_offset = 150
                        end if
                        if this.rnd_shield_rotation = this.rnd_shield_rotation_old and this.rnd_shield = this.rnd_shield_old
                            goto set_shield_animation
                        end if
                    end if
                    this.screen.DrawRotatedObject(this.spr_ship_x-33-10+this.x_offset, this.ship_y-21-10+this.y_offset, this.rnd_shield_rotation, this.bm_shield[this.rnd_shield], m.ship_color[m.active_ship].shield.hex)
                end if

So the question is, is there a performance difference between these various forms of drawing to the screen:

• Drawing sprites that are in the compositor using compositor.DrawAll()


• Using screen.DrawObject()


• Using screen.DrawScaledObject()


• Using screen.DrawRotatedObject()

I guess it makes sense that if the game needs to handle rotating the image first it would take time, I just didn't think it would have this much of a performance hit.

Also note that I am colorifying (IDK the term but gimp calls it this) the shield using the optional hex color argument. Not sure if that could affect it as well.

I know that I could swap out DrawScaledObject() and DrawObject() temporarily to see what it does ( and I probably will ) but I just thought I'd see if anyone else has thoughts on this topic.

Cheers