diff --git a/sw/deployer/src/sc64/link.rs b/sw/deployer/src/sc64/link.rs
index 91937ca..45f0f33 100644
--- a/sw/deployer/src/sc64/link.rs
+++ b/sw/deployer/src/sc64/link.rs
@@ -59,8 +59,8 @@ const FTDI_PREFIX: &str = "ftdi://";
 
 const RESET_TIMEOUT: Duration = Duration::from_secs(1);
 const POLL_TIMEOUT: Duration = Duration::from_millis(5);
-const READ_TIMEOUT: Duration = Duration::from_secs(5);
-const WRITE_TIMEOUT: Duration = Duration::from_secs(5);
+const READ_TIMEOUT: Duration = Duration::from_secs(10);
+const WRITE_TIMEOUT: Duration = Duration::from_secs(10);
 
 pub trait Backend {
     fn read(&mut self, buffer: &mut [u8]) -> std::io::Result<usize>;
diff --git a/sw/deployer/src/sc64/mod.rs b/sw/deployer/src/sc64/mod.rs
index ae76f97..0c74005 100644
--- a/sw/deployer/src/sc64/mod.rs
+++ b/sw/deployer/src/sc64/mod.rs
@@ -102,7 +102,7 @@ const ISV_BUFFER_LENGTH: usize = 64 * 1024;
 
 pub const MEMORY_LENGTH: usize = 0x0500_2980;
 
-const MEMORY_CHUNK_LENGTH: usize = 8 * 1024 * 1024;
+const MEMORY_CHUNK_LENGTH: usize = 1 * 1024 * 1024;
 
 impl SC64 {
     fn command_identifier_get(&mut self) -> Result<[u8; 4], Error> {
@@ -717,7 +717,7 @@ impl SC64 {
 
     pub fn test_usb_speed(&mut self, direction: SpeedTestDirection) -> Result<f64, Error> {
         const TEST_ADDRESS: u32 = SDRAM_ADDRESS;
-        const TEST_LENGTH: usize = 16 * 1024 * 1024;
+        const TEST_LENGTH: usize = 8 * 1024 * 1024;
         const MIB_DIVIDER: f64 = 1024.0 * 1024.0;
 
         let data = vec![0x00; TEST_LENGTH];
diff --git a/sw/deployer/src/sc64/server.rs b/sw/deployer/src/sc64/server.rs
index 70966cf..dff6722 100644
--- a/sw/deployer/src/sc64/server.rs
+++ b/sw/deployer/src/sc64/server.rs
@@ -17,8 +17,8 @@ struct StreamHandler {
     writer: std::io::BufWriter<std::net::TcpStream>,
 }
 
-const READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(5);
-const WRITE_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(5);
+const READ_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(10);
+const WRITE_TIMEOUT: std::time::Duration = std::time::Duration::from_secs(10);
 const KEEPALIVE_PERIOD: std::time::Duration = std::time::Duration::from_secs(5);
 
 impl StreamHandler {