diff --git a/esphome/components/api/api.proto b/esphome/components/api/api.proto
index 6705a30526..4d72be5407 100644
--- a/esphome/components/api/api.proto
+++ b/esphome/components/api/api.proto
@@ -2511,6 +2511,7 @@ message ZWaveProxyFrame {
   option (source) = SOURCE_BOTH;
   option (ifdef) = "USE_ZWAVE_PROXY";
   option (no_delay) = true;
+  option (speed_optimized) = true;
 
   bytes data = 1;
 }
@@ -2628,6 +2629,7 @@ message SerialProxyDataReceived {
   option (source) = SOURCE_SERVER;
   option (ifdef) = "USE_SERIAL_PROXY";
   option (no_delay) = true;
+  option (speed_optimized) = true;
 
   uint32 instance = 1;          // Instance index (0-based)
   bytes data = 2;               // Raw data received from the serial device
diff --git a/esphome/components/api/api_pb2.cpp b/esphome/components/api/api_pb2.cpp
index 95bdb994d3..68be7550ee 100644
--- a/esphome/components/api/api_pb2.cpp
+++ b/esphome/components/api/api_pb2.cpp
@@ -3784,12 +3784,16 @@ bool ZWaveProxyFrame::decode_length(uint32_t field_id, ProtoLengthDelimited valu
   }
   return true;
 }
-uint8_t *ZWaveProxyFrame::encode(ProtoWriteBuffer &buffer PROTO_ENCODE_DEBUG_PARAM) const {
+__attribute__((optimize("O2")))  // NOLINT(clang-diagnostic-unknown-attributes)
+uint8_t *
+ZWaveProxyFrame::encode(ProtoWriteBuffer &buffer PROTO_ENCODE_DEBUG_PARAM) const {
   uint8_t *__restrict__ pos = buffer.get_pos();
   ProtoEncode::encode_bytes(pos PROTO_ENCODE_DEBUG_ARG, 1, this->data, this->data_len);
   return pos;
 }
-uint32_t ZWaveProxyFrame::calculate_size() const {
+__attribute__((optimize("O2")))  // NOLINT(clang-diagnostic-unknown-attributes)
+uint32_t
+ZWaveProxyFrame::calculate_size() const {
   uint32_t size = 0;
   size += ProtoSize::calc_length(1, this->data_len);
   return size;
@@ -4005,13 +4009,17 @@ bool SerialProxyConfigureRequest::decode_varint(uint32_t field_id, proto_varint_
   }
   return true;
 }
-uint8_t *SerialProxyDataReceived::encode(ProtoWriteBuffer &buffer PROTO_ENCODE_DEBUG_PARAM) const {
+__attribute__((optimize("O2")))  // NOLINT(clang-diagnostic-unknown-attributes)
+uint8_t *
+SerialProxyDataReceived::encode(ProtoWriteBuffer &buffer PROTO_ENCODE_DEBUG_PARAM) const {
   uint8_t *__restrict__ pos = buffer.get_pos();
   ProtoEncode::encode_uint32(pos PROTO_ENCODE_DEBUG_ARG, 1, this->instance);
   ProtoEncode::encode_bytes(pos PROTO_ENCODE_DEBUG_ARG, 2, this->data_ptr_, this->data_len_);
   return pos;
 }
-uint32_t SerialProxyDataReceived::calculate_size() const {
+__attribute__((optimize("O2")))  // NOLINT(clang-diagnostic-unknown-attributes)
+uint32_t
+SerialProxyDataReceived::calculate_size() const {
   uint32_t size = 0;
   size += ProtoSize::calc_uint32(1, this->instance);
   size += ProtoSize::calc_length(1, this->data_len_);