Performance: If a WebApp user must wait too long (for access, for server-side processing, for client-side formatting and display, he or she may decide to go elsewhere.
Utendaji: Kama webapp user lazima kusubiri muda mrefu mno (kwa ajili ya kupata, kwa ajili ya usindikaji server-upande, kwa mteja upande formatting na kuonyesha, yeye au anaweza kuamua kwenda mahali pengine.