The java performance complaints are also widely overstated...Mostly when running on windows it took a few seconds when starting a java program if the JVM wasn't

The java performance complaints are also widely overstated...Mostly when running on windows it took a few seconds when starting a java program if the JVM wasn't yet loaded to memory (as it had to be loaded first). But a well written java server-side application (so something that doesn't need to be started very often but generally just idles until it's contacted by clients) is as fast or faster than anything you were likely to be using for a couple decades after its introduction.