If you are using a debug build, make sure you switch to a optimized build that's built with CVM_OPTIMIZED=true CVM_DEBUG=false. Make sure you turn off the debug assert and tracing by setting CVM_DEBUG_ASSERTS=false and CVM_TRACE=false.
Also you can try a ROMized build with CVM_PRELOAD_LIB=true. That should help the startup time.
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