no, it is the solutionthe bike is not the problem!
But back on topic. Go do a track training session if you are around a velodrome to understand what it takes to generate power. When I did it it boosted my power and fitness so badly my mate decided to quit and build an ebike. Te coached there structure a brutal session that more or less involves 2 straight hours of stop-start full out sprinting on repeat and some simulated race situations. Basically forces you to go hard when you are already maxed out.