diff --git a/vita3k/modules/SceDisplay/SceDisplay.cpp b/vita3k/modules/SceDisplay/SceDisplay.cpp
index 67c36df18f..8e5ec07cd5 100644
--- a/vita3k/modules/SceDisplay/SceDisplay.cpp
+++ b/vita3k/modules/SceDisplay/SceDisplay.cpp
@@ -25,6 +25,8 @@
 #include <util/lock_and_find.h>
 #include <util/types.h>
 
+#include "io/state.h"
+
 #include <util/tracy.h>
 TRACY_MODULE_NAME(SceDisplay);
 
@@ -83,9 +85,32 @@ EXPORT(int, _sceDisplayGetFrameBufInternal) {
     return UNIMPLEMENTED();
 }
 
-EXPORT(int, _sceDisplayGetMaximumFrameBufResolution) {
-    TRACY_FUNC(_sceDisplayGetMaximumFrameBufResolution);
-    return UNIMPLEMENTED();
+EXPORT(int, _sceDisplayGetMaximumFrameBufResolution, int *width, int *height) {
+    TRACY_FUNC(_sceDisplayGetMaximumFrameBufResolution, width, height);
+    if (!width || !height)
+        return 0;
+    if (emuenv.cfg.pstv_mode) {
+        *width = 1920;
+        *height = 1088;
+    } else {
+        auto &title_id = emuenv.io.title_id;
+        bool cond = title_id == "PCSG80001"
+            || title_id == "PCSG80007"
+            || title_id == "PCSG00318"
+            || title_id == "PCSG00319"
+            || title_id == "PCSG00320"
+            || title_id == "PCSG00321"
+            || title_id == "PCSH00059";
+        if (cond) {
+            *width = 960;
+            *height = 544;
+
+        } else {
+            *width = 1280;
+            *height = 725;
+        }
+    }
+    return 0;
 }
 
 EXPORT(int, _sceDisplayGetResolutionInfoInternal) {
diff --git a/vita3k/modules/SceDisplay/SceDisplay.h b/vita3k/modules/SceDisplay/SceDisplay.h
index 911332969a..6df11956ae 100644
--- a/vita3k/modules/SceDisplay/SceDisplay.h
+++ b/vita3k/modules/SceDisplay/SceDisplay.h
@@ -68,3 +68,4 @@ struct SceDisplayFrameBuf2 : public SceDisplayFrameBuf {
 
 DECL_EXPORT(SceInt32, _sceDisplayGetFrameBuf, SceDisplayFrameBuf *pFrameBuf, SceDisplaySetBufSync sync, uint32_t *pFrameBuf_size);
 DECL_EXPORT(SceInt32, _sceDisplaySetFrameBuf, const SceDisplayFrameBuf *pFrameBuf, SceDisplaySetBufSync sync, uint32_t *pFrameBuf_size);
+DECL_EXPORT(int, _sceDisplayGetMaximumFrameBufResolution, int *width, int *height);
\ No newline at end of file
diff --git a/vita3k/modules/SceDriverUser/SceDisplayUser.cpp b/vita3k/modules/SceDriverUser/SceDisplayUser.cpp
index 4deded9319..5b9377d9ba 100644
--- a/vita3k/modules/SceDriverUser/SceDisplayUser.cpp
+++ b/vita3k/modules/SceDriverUser/SceDisplayUser.cpp
@@ -38,9 +38,9 @@ EXPORT(int, sceDisplayGetFrameBufInternal) {
     return UNIMPLEMENTED();
 }
 
-EXPORT(int, sceDisplayGetMaximumFrameBufResolution) {
-    TRACY_FUNC(sceDisplayGetMaximumFrameBufResolution);
-    return UNIMPLEMENTED();
+EXPORT(int, sceDisplayGetMaximumFrameBufResolution, int *width, int *height) {
+    TRACY_FUNC(sceDisplayGetMaximumFrameBufResolution, width, height);
+    return CALL_EXPORT(_sceDisplayGetMaximumFrameBufResolution, width, height);
 }
 
 EXPORT(int, sceDisplayGetResolutionInfoInternal) {
@@ -61,7 +61,13 @@ EXPORT(int, sceDisplaySetFrameBufForCompat) {
     return UNIMPLEMENTED();
 }
 
-EXPORT(int, sceDisplaySetFrameBufInternal) {
-    TRACY_FUNC(sceDisplaySetFrameBufInternal);
-    return UNIMPLEMENTED();
+EXPORT(int, sceDisplaySetFrameBufInternal, uint32_t maybe_buffer_idx, uint32_t unkn, SceDisplayFrameBuf *pFrameBuf, SceDisplaySetBufSync sync) {
+    TRACY_FUNC(sceDisplaySetFrameBufInternal, maybe_buffer_idx, unkn, pFrameBuf, sync);
+    // only render for frame buffer 0 or we'll get double fps
+    if (maybe_buffer_idx != 0)
+        return 0;
+    // size does not match (is 4 bytes larger)
+    if (pFrameBuf)
+        pFrameBuf->size = 0x18;
+    return CALL_EXPORT(_sceDisplaySetFrameBuf, pFrameBuf, sync, nullptr);
 }
diff --git a/vita3k/modules/SceGxm/SceGxm.h b/vita3k/modules/SceGxm/SceGxm.h
index 1a14c224dd..7312edf641 100644
--- a/vita3k/modules/SceGxm/SceGxm.h
+++ b/vita3k/modules/SceGxm/SceGxm.h
@@ -20,4 +20,9 @@
 #include <module/module.h>
 
 struct SceGxmInitializeParams;
+struct SceGxmRenderTargetParams;
+struct SceGxmRenderTarget;
+
 DECL_EXPORT(int, sceGxmInitialize, const SceGxmInitializeParams *params);
+DECL_EXPORT(int, sceGxmCreateRenderTarget, const SceGxmRenderTargetParams *params, Ptr<SceGxmRenderTarget> *renderTarget);
+DECL_EXPORT(int, sceGxmGetRenderTargetMemSize, const SceGxmRenderTargetParams *params, uint32_t *hostMemSize);
diff --git a/vita3k/modules/SceGxm/SceGxmInternal.cpp b/vita3k/modules/SceGxm/SceGxmInternal.cpp
index 0df1403f96..ce97297904 100644
--- a/vita3k/modules/SceGxm/SceGxmInternal.cpp
+++ b/vita3k/modules/SceGxm/SceGxmInternal.cpp
@@ -17,20 +17,22 @@
 
 #include <module/module.h>
 
+#include "SceGxm.h"
+
 EXPORT(int, sceGxmCheckMemoryInternal) {
     return UNIMPLEMENTED();
 }
 
-EXPORT(int, sceGxmCreateRenderTargetInternal) {
-    return UNIMPLEMENTED();
+EXPORT(int, sceGxmCreateRenderTargetInternal, const SceGxmRenderTargetParams *params, Ptr<SceGxmRenderTarget> *renderTarget) {
+    return CALL_EXPORT(sceGxmCreateRenderTarget, params, renderTarget);
 }
 
 EXPORT(int, sceGxmGetDisplayQueueThreadIdInternal) {
     return UNIMPLEMENTED();
 }
 
-EXPORT(int, sceGxmGetRenderTargetMemSizeInternal) {
-    return UNIMPLEMENTED();
+EXPORT(int, sceGxmGetRenderTargetMemSizeInternal, const SceGxmRenderTargetParams *params, uint32_t *hostMemSize) {
+    return CALL_EXPORT(sceGxmGetRenderTargetMemSize, params, hostMemSize);
 }
 
 EXPORT(int, sceGxmGetTopContextInternal) {