diff --git a/boards/arm/cxd56xx/spresense/configs/rndis_smp/defconfig b/boards/arm/cxd56xx/spresense/configs/rndis_smp/defconfig
index 81e29865fb..dcadf517a5 100644
--- a/boards/arm/cxd56xx/spresense/configs/rndis_smp/defconfig
+++ b/boards/arm/cxd56xx/spresense/configs/rndis_smp/defconfig
@@ -66,9 +66,14 @@ CONFIG_IOB_NBUFFERS=128
 CONFIG_LIBC_EXECFUNCS=y
 CONFIG_LIBM=y
 CONFIG_LIB_ENVPATH=y
+CONFIG_LIB_SENDFILE_BUFSIZE=1024
 CONFIG_MAX_TASKS=16
+CONFIG_MEMCPY_VIK=y
+CONFIG_MEMSET_64BIT=y
+CONFIG_MEMSET_OPTSPEED=y
 CONFIG_MMCSD=y
 CONFIG_MMCSD_SDIO=y
+CONFIG_MQ_MAXMSGSIZE=64
 CONFIG_MTD_BYTE_WRITE=y
 CONFIG_MTD_PARTITION=y
 CONFIG_MTD_SMART=y