Good info from the other contributors. Having to run the faucet for a minute or so to get hot water is common. As mentioned, it depends primarily on the length of the run (and pipe size) from the source of the hot water to the fixture you are using. Unless you are able to install a return line dedicated to completing the water circle between the source and the fixture, re-circ pumps push water back thru the cold supply line, so then you have to be prepared to wait for cold water.I question their value.

Since I know I have to wait for hot water up in the master bath, I solve this problem in my house first thing in the morning by using the cold water from the hot side of the faucet to brush my teeth. About the time I finish brushing, the hot water shows up. Otherwise, I have to let the shower run, wasting more water than I like to admit. Tim

HVAC, window and insulation problem. In most modern houses you have a lot of solar heat gain in the Summer since they have a lot of windows that allow natural daylight to enter. We just built a new modern house and had to make sure to use the best windows on the market and super insulate in order to protect the conditioned parts of the house from the extreme outside elements. We also installed a geothermal HVAC unit. This is probably not the solution for you, but you can work to reduce the amount of direct sunlight then adjust the amount of airflow to the areas that need it the most.

I've always had the best luck simply with the "Better Boy" hybrid tomato. They seem to provide the most fruit and are good for slicing, salsa etc..