Her Ukrainian DN-80 gas turbine engines each develop 24,300 horsepower and are unlikely to propel the Shi Lang anywhere close to the boasted 30 knots. The ship is so obsolete that her greatest threat is to the sailors on board.
The Russians developed those engines, originally scaled-up from the mills they were installing in Tu-95 "Bears". They adapted them for naval use and built a class of subchasers they called Petya in the early 60's. These blew up so regularly -- and we're not talking fuel deflagration here, we're talking turbines coming apart at full power -- that the Sovs completed the class with diesels and called the new subclass Mirka ...... eventually they learned that the fuel was the problem, and they (no doubt stole samples) started brewing double-distilled, triple-rectified busthead with low vanadium. (Naturally-occurring vanadium was the culprit, hardening and embrittling the turbine vanes over time -- notice your favorite Ginsu knives sometime; they're stamped "vanadium steel", because the vanadium is what allows them to take and keep a fine edge, at the expense of some embrittlement.)