For the Pound Cake:
Preheat your oven to 325 degrees.
Combine the flour, baking powder, and salt and sit to the side.
Then, using a hand or stand mixer, mix the butter together then slowly add in the granulated sugar. Mix on medium speed until until light and fluffy (approximately 5 minutes).
Add the cream cheese to the batter and mix until incorporated.
Then add the eggs to the bowl one at a time, mixing until combined after each addition before adding the next egg.
Mix the lemon juice into the batter.
Mix in the flour 1 c at a time until all of the flour is added.
Lastly, fold the blueberries into the batter. (You may choose to toss the blueberries in flour first to prevent them from sinking).
Spray a 12-cup bundt pan with baking spray. Pour the batter into your bundt pan and spread it evenly. Bake the pound cake for about an hour and 15 minutes.
The cake is done once a toothpick inserted in the center of the cake comes out clean.
Remove the cake from the oven and allow it to cool for 10 - 15 minutes before removing it from the pan.
For the Blueberry Compote:
In a medium-size saucepan, add the blueberries, sugar, and lemon juice and heat to medium heat. Stir frequently for about 15 minutes.
Add the cornstarch if the compote is not at your desired thickness. Remove the compote from the heat and allow it to cool before adding it to cake.
For the Lemon Icing:
Mix the powdered sugar and lemon juice together until nice and smooth.
Once the cake has cooled, add the compote and glaze to the cake as desired.
Allow the glaze and compote to set before serving.