Complex sentence: Pfu DNA polymerase is superior for techniques that require high-fidelity DNA synthesis, but can also be used in conjunction with Taq polymerase to obtain the fidelity of Pfu with the speed of Taq polymerase activity.
Split into simpler sentences: Pfu DNA polymerase is superior for techniques that require high-fidelity DNA synthesis. Pfu can also be used with Taq to obtain the fidelity of Pfu with the speed of Taq polymerase activity.