When I see a pressure switch with the bandwidth widened more than 20 PSI, as with the 35/65 setting, I know cycling on/off has been a problem and someone is trying to slow it down. Widening the pressure switch bandwidth or installing a larger tank only slows down the cycling somewhat. The pump will still cycle unless you open up enough water to use as much as the pump can produce, which is rarely practical.
Cycling every 45 seconds is not good, 1.5 minutes is not much better. A CSV would make the pump stay on for as long as the kitchen sink or anything else is running. A pump/motor only has so many cycles built into it. The sooner you use up those cycles the sooner you will need a new pump.
A kitchen sink usually only requires about 2 GPM, so you either have only about a 10 gallon size pressure tank, or the bladder is already busted. Bladders in tanks also break from the pump cycling on and off. This causes the bladder to bend back and forth with every cycle until the bladder breaks like bending a piece of wire until it breaks.