diff --git a/src/mame/sinclair/sprinter.cpp b/src/mame/sinclair/sprinter.cpp
index 20fdadf96cc..3f31ea51725 100644
--- a/src/mame/sinclair/sprinter.cpp
+++ b/src/mame/sinclair/sprinter.cpp
@@ -1709,7 +1709,7 @@ INPUT_PORTS_START( sprinter )
 	PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("CAPS SHIFT") PORT_CODE(KEYCODE_LSHIFT) PORT_CODE(KEYCODE_RSHIFT)  PORT_CHAR(UCHAR_SHIFT_1) PORT_CHAR(UCHAR_SHIFT_2)
 	PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("z    Z    :      LN       BEEP   COPY") PORT_CODE(KEYCODE_Z)      PORT_CHAR('z') PORT_CHAR('Z') PORT_CHAR(':')
 																	 PORT_CODE(KEYCODE_BACKSLASH)
-	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("x    X    $      EXP      INK    CLEAR") PORT_CODE(KEYCODE_X)   PORT_CHAR('x') PORT_CHAR('X') PORT_CHAR(U'£')
+	PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("x    X    $      EXP      INK    CLEAR") PORT_CODE(KEYCODE_X)     PORT_CHAR('x') PORT_CHAR('X') PORT_CHAR('$')
 	PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("c    C    ?      LPRINT   PAPER  CONT") PORT_CODE(KEYCODE_C)      PORT_CHAR('c') PORT_CHAR('C') PORT_CHAR('?')
 	PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("v    V    /      LLIST    FLASH  CLS") PORT_CODE(KEYCODE_V)       PORT_CHAR('v') PORT_CHAR('V') PORT_CHAR('/')
 																	 PORT_CODE(KEYCODE_SLASH) PORT_CODE(KEYCODE_SLASH_PAD)
@@ -1825,10 +1825,10 @@ INPUT_PORTS_START( sprinter )
 
 
 	PORT_START("mouse_input1")
-	PORT_BIT(0xff, 0, IPT_MOUSE_X) PORT_SENSITIVITY(30)
+	PORT_BIT(0xff, 0, IPT_MOUSE_X) PORT_SENSITIVITY(60)
 
 	PORT_START("mouse_input2")
-	PORT_BIT(0xff, 0, IPT_MOUSE_Y) PORT_INVERT PORT_SENSITIVITY(30)
+	PORT_BIT(0xff, 0, IPT_MOUSE_Y) PORT_INVERT PORT_SENSITIVITY(60)
 
 	PORT_START("mouse_input3")
 	PORT_BIT(0xf8, IP_ACTIVE_LOW, IPT_UNUSED)
@@ -1891,6 +1891,12 @@ void sprinter_state::sprinter(machine_config &config)
 	m_maincpu->set_irq_acknowledge_callback(NAME([](device_t &, int){ return 0xff; }));
 	m_maincpu->irqack_cb().set(FUNC(sprinter_state::irq_off));
 
+	DS12885(config, m_rtc, XTAL(32'768)); // should be DS12887A
+	ATA_INTERFACE(config, m_ata[0]).options(sprinter_ata_devices, "hdd", "hdd", false);
+	ATA_INTERFACE(config, m_ata[1]).options(sprinter_ata_devices, "hdd", "hdd", false);
+
+	BETA_DISK(config, m_beta, 0);
+
 	ISA8(config, m_isa[0], X_SP / 5);
 	m_isa[0]->set_custom_spaces();
 	zxbus_device &zxbus(ZXBUS(config, "zxbus", 0));
@@ -1929,12 +1935,6 @@ void sprinter_state::sprinter(machine_config &config)
 	m_maincpu->zc_callback<0>().append(m_maincpu, FUNC(z84c015_device::txcb_w));
 	m_maincpu->zc_callback<2>().set(m_maincpu, FUNC(z84c015_device::trg3));
 
-	DS12885(config, m_rtc, XTAL(32'768)); // should be DS12887A
-	ATA_INTERFACE(config, m_ata[0]).options(sprinter_ata_devices, "hdd", "hdd", false);
-	ATA_INTERFACE(config, m_ata[1]).options(sprinter_ata_devices, "hdd", "hdd", false);
-
-	BETA_DISK(config, m_beta, 0);
-
 	SPEAKER(config, "lspeaker").front_left();
 	SPEAKER(config, "rspeaker").front_right();