= doc.FAQ.WhatFactorsContributeToPerformanceProblems %TOC% *Use of [[OpenLink]] 's older 1.x and 3.x drivers. The RPC communications layer--contained within newer, [[OpenLink]] drivers--was redesigned for enhanced performance. *Use of [[OpenLink]] 's Multi-Tier drivers when use of Single-Tier drivers is possible. Single-Tier drivers boost performance. *Use of sockets connectivity where shared memory connectivity is possible. *Retrieval of large, binary objects. *Non-use or misuse of the Row Buffer Size DSN attribute. *Use of less efficient cursor modalities. *Poor use of indexes and table structuring. ----