diff --git a/backend/src/api/api_types.rs b/backend/src/api/api_types.rs
index 7d8e6bf..662b899 100644
--- a/backend/src/api/api_types.rs
+++ b/backend/src/api/api_types.rs
@@ -51,7 +51,9 @@ pub struct GeneralLimits {}
 #[derive(Serialize, Deserialize)]
 pub struct GpuLimits {
     pub fast_ppt_limits: Option<RangeLimit<u64>>,
+    pub fast_ppt_default: u64,
     pub slow_ppt_limits: Option<RangeLimit<u64>>,
+    pub slow_ppt_default: u64,
     pub ppt_step: u64,
     pub tdp_limits: Option<RangeLimit<u64>>,
     pub tdp_boost_limits: Option<RangeLimit<u64>>,
diff --git a/backend/src/settings/dev_mode/gpu.rs b/backend/src/settings/dev_mode/gpu.rs
index c6605a2..f8b8026 100644
--- a/backend/src/settings/dev_mode/gpu.rs
+++ b/backend/src/settings/dev_mode/gpu.rs
@@ -99,15 +99,17 @@ impl TGpu for Gpu {
         log::debug!("dev_mode_Gpu::limits(self) -> {{...}}");
         let ppt_divisor = self.limits.ppt_divisor.unwrap_or(1_000_000);
         let tdp_divisor = self.limits.tdp_divisor.unwrap_or(1_000_000);
-        crate::api::GpuLimits {
+        let limit_struct = crate::api::GpuLimits {
             fast_ppt_limits: self.limits.fast_ppt.map(|lim| crate::api::RangeLimit {
                 min: lim.min.unwrap_or(11_000_000) / ppt_divisor,
                 max: lim.max.unwrap_or(42_000_000) / ppt_divisor,
             }),
+            fast_ppt_default: self.limits.fast_ppt_default.or_else(|| self.limits.fast_ppt.and_then(|x| x.max)).unwrap_or(2_000_000) / ppt_divisor,
             slow_ppt_limits: self.limits.slow_ppt.map(|lim| crate::api::RangeLimit {
                 min: lim.min.unwrap_or(7_000_000) / ppt_divisor,
                 max: lim.max.unwrap_or(69_000_000) / ppt_divisor,
             }),
+            slow_ppt_default: self.limits.slow_ppt_default.or_else(|| self.limits.slow_ppt.and_then(|x| x.max)).unwrap_or(3_000_000) / ppt_divisor,
             ppt_step: self.limits.ppt_step.unwrap_or(1),
             tdp_limits: self.limits.tdp.map(|lim| crate::api::RangeLimit {
                 min: lim.min.unwrap_or(11_000_000) / tdp_divisor,
@@ -132,7 +134,9 @@ impl TGpu for Gpu {
                 max: lim.max.unwrap_or(1100),
             }),
             memory_step: self.limits.memory_clock_step.unwrap_or(400),
-        }
+        };
+        log::debug!("dev_mode_Gpu::limits(self) -> {}", serde_json::to_string_pretty(&limit_struct).unwrap());
+        limit_struct
     }
 
     fn json(&self) -> crate::persist::GpuJson {
diff --git a/backend/src/settings/generic/gpu.rs b/backend/src/settings/generic/gpu.rs
index a96bae8..80e19e6 100644
--- a/backend/src/settings/generic/gpu.rs
+++ b/backend/src/settings/generic/gpu.rs
@@ -167,6 +167,14 @@ impl TGpu for Gpu {
                         x
                     }
                 }),
+            fast_ppt_default: {
+                let def = self.limits.fast_ppt_default.or_else(|| self.limits.fast_ppt.and_then(|x| x.max)).unwrap_or(15);
+                if let Some(ppt_divisor) = self.limits.ppt_divisor {
+                    def / ppt_divisor
+                } else {
+                    def
+                }
+            },
             slow_ppt_limits: self
                 .limits
                 .slow_ppt
@@ -181,6 +189,14 @@ impl TGpu for Gpu {
                         x
                     }
                 }),
+            slow_ppt_default: {
+                let def = self.limits.slow_ppt_default.or_else(|| self.limits.slow_ppt.and_then(|x| x.max)).unwrap_or(15);
+                if let Some(ppt_divisor) = self.limits.ppt_divisor {
+                    def / ppt_divisor
+                } else {
+                    def
+                }
+            },
             ppt_step: self.limits.ppt_step.unwrap_or(1),
             tdp_limits: self
                 .limits
diff --git a/backend/src/settings/generic_amd/gpu.rs b/backend/src/settings/generic_amd/gpu.rs
index 265956c..983bd29 100644
--- a/backend/src/settings/generic_amd/gpu.rs
+++ b/backend/src/settings/generic_amd/gpu.rs
@@ -327,7 +327,9 @@ impl crate::settings::OnUnload for Gpu {
 fn bad_gpu_limits() -> crate::api::GpuLimits {
     crate::api::GpuLimits {
         fast_ppt_limits: None,
+        fast_ppt_default: 1,
         slow_ppt_limits: None,
+        slow_ppt_default: 1,
         ppt_step: 1,
         tdp_limits: None,
         tdp_boost_limits: None,
diff --git a/backend/src/settings/steam_deck/gpu.rs b/backend/src/settings/steam_deck/gpu.rs
index 46a7c00..c7ca486 100644
--- a/backend/src/settings/steam_deck/gpu.rs
+++ b/backend/src/settings/steam_deck/gpu.rs
@@ -638,19 +638,22 @@ impl crate::settings::OnUnload for Gpu {
 impl TGpu for Gpu {
     fn limits(&self) -> crate::api::GpuLimits {
         let max_gpu_clock = self.read_max_gpu_clock();
+        let ppt_divisor = self.limits.ppt_divisor.unwrap_or(PPT_DIVISOR);
         crate::api::GpuLimits {
             fast_ppt_limits: Some(RangeLimit {
                 min: super::util::range_min_or_fallback(&self.limits.fast_ppt, MIN_FAST_PPT)
-                    / self.limits.ppt_divisor.unwrap_or(PPT_DIVISOR),
+                    / ppt_divisor,
                 max: super::util::range_max_or_fallback(&self.limits.fast_ppt, MAX_FAST_PPT)
-                    / self.limits.ppt_divisor.unwrap_or(PPT_DIVISOR),
+                    / ppt_divisor,
             }),
+            fast_ppt_default: self.limits.fast_ppt_default.or_else(|| self.limits.fast_ppt.and_then(|x| x.max)).unwrap_or(MAX_FAST_PPT) / ppt_divisor,
             slow_ppt_limits: Some(RangeLimit {
                 min: super::util::range_min_or_fallback(&self.limits.slow_ppt, MIN_SLOW_PPT)
-                    / self.limits.ppt_divisor.unwrap_or(PPT_DIVISOR),
+                    / ppt_divisor,
                 max: super::util::range_max_or_fallback(&self.limits.slow_ppt, MIN_SLOW_PPT)
-                    / self.limits.ppt_divisor.unwrap_or(PPT_DIVISOR),
+                    / ppt_divisor,
             }),
+            slow_ppt_default: self.limits.slow_ppt_default.or_else(|| self.limits.slow_ppt.and_then(|x| x.max)).unwrap_or(MAX_SLOW_PPT) / ppt_divisor,
             ppt_step: self.limits.ppt_step.unwrap_or(1),
             tdp_limits: None,
             tdp_boost_limits: None,
diff --git a/backend/src/settings/unknown/gpu.rs b/backend/src/settings/unknown/gpu.rs
index d7c4826..90c1279 100644
--- a/backend/src/settings/unknown/gpu.rs
+++ b/backend/src/settings/unknown/gpu.rs
@@ -71,7 +71,9 @@ impl TGpu for Gpu {
     fn limits(&self) -> crate::api::GpuLimits {
         crate::api::GpuLimits {
             fast_ppt_limits: None,
+            fast_ppt_default: 1_000_000,
             slow_ppt_limits: None,
+            slow_ppt_default: 1_000_000,
             ppt_step: 1_000_000,
             tdp_limits: None,
             tdp_boost_limits: None,
diff --git a/src/backend.ts b/src/backend.ts
index bff625a..9d55f77 100644
--- a/src/backend.ts
+++ b/src/backend.ts
@@ -85,7 +85,9 @@ export type GeneralLimits = {};
 
 export type GpuLimits = {
     fast_ppt_limits: RangeLimit | null;
+    fast_ppt_default: number;
     slow_ppt_limits: RangeLimit | null;
+    slow_ppt_default: number;
     ppt_step: number;
     clock_min_limits: RangeLimit | null;
     clock_max_limits: RangeLimit | null;
diff --git a/src/components/gpu.tsx b/src/components/gpu.tsx
index fb8dfc6..fce7670 100644
--- a/src/components/gpu.tsx
+++ b/src/components/gpu.tsx
@@ -41,11 +41,11 @@ export class Gpu extends Component<backend.IdcProps> {
                 onChange={(value: boolean) => {
                     if (value) {
                         if ((get_value(LIMITS_INFO) as backend.SettingsLimits).gpu.slow_ppt_limits != null) {
-                            set_value(SLOW_PPT_GPU, (get_value(LIMITS_INFO) as backend.SettingsLimits).gpu.slow_ppt_limits!.max);
+                            set_value(SLOW_PPT_GPU, (get_value(LIMITS_INFO) as backend.SettingsLimits).gpu.slow_ppt_default);
                         }
 
                         if ((get_value(LIMITS_INFO) as backend.SettingsLimits).gpu.fast_ppt_limits != null) {
-                            set_value(FAST_PPT_GPU, (get_value(LIMITS_INFO) as backend.SettingsLimits).gpu.fast_ppt_limits!.max);
+                            set_value(FAST_PPT_GPU, (get_value(LIMITS_INFO) as backend.SettingsLimits).gpu.fast_ppt_default);
                         }
                         reloadGUI("GPUPPTToggle");
                     } else {