diff --git a/config/nrfconnect/app/sample-defaults.conf b/config/nrfconnect/app/sample-defaults.conf
index 16d5cd842b5a2d..b561a1183b7863 100644
--- a/config/nrfconnect/app/sample-defaults.conf
+++ b/config/nrfconnect/app/sample-defaults.conf
@@ -25,6 +25,7 @@ CONFIG_MATTER_LOG_LEVEL_DBG=y
 CONFIG_PRINTK_SYNC=y
 CONFIG_ASSERT=y
 CONFIG_HW_STACK_PROTECTION=y
+CONFIG_FPU=y
 CONFIG_SHELL=y
 
 # Enable getting reboot reasons information
@@ -63,6 +64,7 @@ CONFIG_BT_MAX_CONN=1
 CONFIG_BT_L2CAP_TX_MTU=247
 CONFIG_BT_BUF_ACL_RX_SIZE=251
 CONFIG_BT_BUF_ACL_TX_SIZE=251
+CONFIG_BT_RX_STACK_SIZE=1120
 
 # Enable NFC support
 CONFIG_CHIP_NFC_COMMISSIONING=y
@@ -76,7 +78,6 @@ CONFIG_OPENTHREAD_FTD=n
 CONFIG_OPENTHREAD_SLAAC=y
 CONFIG_OPENTHREAD_MTD_NETDIAG=y
 CONFIG_OPENTHREAD_MANUAL_START=y
-CONFIG_OPENTHREAD_THREAD_STACK_SIZE=6144
 CONFIG_OPENTHREAD_NUM_MESSAGE_BUFFERS=64
 
 # Enable Thread 1.2 features