diff --git a/Source/Atmosphere/stratosphere/loader/source/oc/customize.hpp b/Source/Atmosphere/stratosphere/loader/source/oc/customize.hpp
index b5ceb5e8..1c434210 100644
--- a/Source/Atmosphere/stratosphere/loader/source/oc/customize.hpp
+++ b/Source/Atmosphere/stratosphere/loader/source/oc/customize.hpp
@@ -26,10 +26,11 @@ namespace ams::ldr::oc {
 #include "mtc_timing_table.hpp"
 
 enum MtcConfig: u32 {
-    AUTO_ADJ_SAFE_MARIKO_ONLY = 0,
-    CUSTOM_ADJ_MARIKO_ONLY = 1,
-    NO_ADJ_ALL = 2,
-    CUSTOMIZED_ALL = 3,
+    AUTO_ADJ_SAFE_MARIKO = 0,
+    AUTO_ADJ_PERF_MARIKO = 1,
+    CUSTOM_ADJ_MARIKO = 2,
+    NO_ADJ_ALL = 3,
+    CUSTOMIZED_ALL = 4,
 };
 
 using CustomizeCpuDvfsTable = pcv::cvb_entry_t[pcv::DvfsTableEntryLimit];
diff --git a/Source/Atmosphere/stratosphere/loader/source/oc/pcv/pcv_mariko.cpp b/Source/Atmosphere/stratosphere/loader/source/oc/pcv/pcv_mariko.cpp
index a095787d..c906e14f 100644
--- a/Source/Atmosphere/stratosphere/loader/source/oc/pcv/pcv_mariko.cpp
+++ b/Source/Atmosphere/stratosphere/loader/source/oc/pcv/pcv_mariko.cpp
@@ -108,11 +108,11 @@ void MemMtcTableAutoAdjust(MarikoMtcTable* table, const MarikoMtcTable* ref) {
      * you'd better calculate timings yourself rather than relying on following algorithm.
      */
 
-    if (C.mtcConf != AUTO_ADJ_SAFE_MARIKO_ONLY)
+    if (C.mtcConf != AUTO_ADJ_SAFE_MARIKO && C.mtcConf != AUTO_ADJ_PERF_MARIKO)
     	return;
 
     #define ADJUST_PROP(TARGET, REF)                                                                        \
-        (u32)(std::ceil(REF + ((C.marikoEmcMaxClock-EmcClkOSAlt)*(TARGET-REF))/(EmcClkOSLimit-EmcClkOSAlt)))
+        (u32)(std::ceil( 0.65 * C.mtcConf * (REF + ((C.marikoEmcMaxClock-EmcClkOSAlt)*(TARGET-REF))/(EmcClkOSLimit-EmcClkOSAlt))))
 
     #define ADJUST_PARAM(TARGET, REF)     \
         TARGET = ADJUST_PROP(TARGET, REF);
@@ -221,7 +221,7 @@ void MemMtcTableAutoAdjust(MarikoMtcTable* table, const MarikoMtcTable* ref) {
     // Valid Clock requirement before CKE Input HIGH in ns
     const double tCKCKEH = MAX(1.75, 3*tCK_avg);
 
-    #define GET_CYCLE_CEIL(PARAM) u32(std::ceil(double(PARAM) / tCK_avg))
+    #define GET_CYCLE_CEIL(PARAM) C.mtcConf ? u32(std::ceil(double(PARAM) / 1.2* tCK_avg)) : u32(std::ceil(double(PARAM) / tCK_avg))
 
     WRITE_PARAM_ALL_REG(table, emc_rc,      GET_CYCLE_CEIL(tRC)); //0x124
     WRITE_PARAM_ALL_REG(table, emc_rfc,     GET_CYCLE_CEIL(tRFCab)); //0x128
diff --git a/pages/src/main.ts b/pages/src/main.ts
index d1cfcaca..78ef49b4 100644
--- a/pages/src/main.ts
+++ b/pages/src/main.ts
@@ -163,8 +163,9 @@ var CustTable: Array<CustEntry> = [
     CustPlatform.Mariko,
     4,
     ["<b>0</b>: AUTO_ADJ_SAFE_MARIKO: Auto adjust timings for LPDDR4 ≤3733 Mbps specs, 8Gb density. (Default)",
-     "<b>1</b>: CUSTOM_ADJ_MARIKO_ONLY: Basically same as NO_ADJ_ALL, with only core timing adjustments (Use advanced config)",
-     "<b>2</b>: NO_ADJ_ALL: No timing adjustment for both Erista and Mariko. Might achieve better performance on Mariko but lower maximum frequency is expected."],
+     "<b>1</b>: AUTO_ADJ_PERF_MARIKO: Auto adjust with tightened timings for best performance",
+     "<b>2</b>: CUSTOM_ADJ_MARIKO: Basically same as NO_ADJ_ALL, with only core timing adjustments (Use advanced config)",
+     "<b>3</b>: NO_ADJ_ALL: No timing adjustment for both Erista and Mariko. Might achieve better performance on Mariko but lower maximum frequency is expected."],
     0,
     [0, 2],
     1