Preheat your oven to 325°F (160°C) and line the bottom of a springform pan with parchment paper.
Prepare the crust by mixing graham cracker crumbs, melted butter, and sugar in a bowl until fully combined.
Press the crust mixture firmly into the bottom and slightly up the sides of the pan. Bake for 10 minutes and set aside to cool.
In a large bowl, beat the cream cheese until smooth. Add sugar and continue mixing until combined.
Add sour cream, vanilla extract, and lemon juice. Mix on low speed until just incorporated.
Add eggs one at a time, mixing gently after each addition to avoid overbeating.
Pour the batter into the cooled crust and smooth the top with a spatula.
Place the springform pan into a larger baking pan and pour hot water into the outer pan to create a water bath.
Bake for 60 minutes or until the center is almost set but still slightly jiggly.
Turn off the oven, crack the door, and let the cheesecake cool inside for 1 hour.
Remove the cheesecake from the oven and water bath, then cool at room temperature for another hour.
Chill in the refrigerator for at least 4 to 6 hours or preferably overnight.
While the cheesecake chills, prepare the topping by combining strawberries, sugar, and lemon juice in a saucepan.
Simmer over medium heat for 5 minutes until strawberries begin to soften.
Stir cornstarch and water in a small bowl and add to the strawberry mixture. Cook until thickened, then cool.
Once the cheesecake is fully chilled, spoon the strawberry topping over the surface evenly.
Slice and serve chilled.