Slow PlayerSelections Controller

gistfile1.txt

class PlayerSelectionsController < ApplicationController  
  def create
    selection = PlayerSelection.new(player_selection_params.merge(user_id: current_user.id, game: Game.current_game))
    if selection.save
      render json: selection, status: 201, serializer: PlayerSelectionSerializer
    else
      render json: {errors: selection.errors}, status: 422
    end
  end

private

    def player_selection_params
      params.require(:player_selection).permit(:player_id, :user_id)
    end
end