diff --git a/core/hw/sh4/dyna/driver.cpp b/core/hw/sh4/dyna/driver.cpp
index 61d4a486f..183e0203f 100644
--- a/core/hw/sh4/dyna/driver.cpp
+++ b/core/hw/sh4/dyna/driver.cpp
@@ -16,8 +16,9 @@
 
 #if FEAT_SHREC != DYNAREC_NONE
 
-constexpr u32 CODE_SIZE = 10_MB;
-constexpr u32 TEMP_CODE_SIZE = 1_MB;
+// Enlarged to reduce cache evictions and block recompilation
+constexpr u32 CODE_SIZE = 128_MB;
+constexpr u32 TEMP_CODE_SIZE = 4_MB;
 constexpr u32 FULL_SIZE = CODE_SIZE + TEMP_CODE_SIZE;
 
 #if defined(_WIN32) || FEAT_SHREC != DYNAREC_JIT || defined(TARGET_IPHONE) || defined(TARGET_ARM_MAC)
diff --git a/core/hw/sh4/dyna_jitless/driver_jitless.cpp b/core/hw/sh4/dyna_jitless/driver_jitless.cpp
index c4119f012..00aabb4ad 100644
--- a/core/hw/sh4/dyna_jitless/driver_jitless.cpp
+++ b/core/hw/sh4/dyna_jitless/driver_jitless.cpp
@@ -31,8 +31,9 @@ extern bool g_exception_was_raised;
 
 #if FEAT_SHREC == DYNAREC_JITLESS
 
-constexpr u32 CODE_SIZE = 10_MB;
-constexpr u32 TEMP_CODE_SIZE = 1_MB;
+// Enlarged code cache for jitless path to avoid frequent clears
+constexpr u32 CODE_SIZE = 32_MB;
+constexpr u32 TEMP_CODE_SIZE = 2_MB;
 constexpr u32 FULL_SIZE = CODE_SIZE + TEMP_CODE_SIZE;
 
 #if defined(_WIN32) || FEAT_SHREC != DYNAREC_JIT || defined(TARGET_IPHONE) || defined(TARGET_ARM_MAC)