diff --git a/src/core/slide/slideNext.mjs b/src/core/slide/slideNext.mjs
index 0a2616adf..89a0f21e7 100644
--- a/src/core/slide/slideNext.mjs
+++ b/src/core/slide/slideNext.mjs
@@ -1,8 +1,11 @@
 /* eslint no-unused-vars: "off" */
-export default function slideNext(speed = this.params.speed, runCallbacks = true, internal) {
+export default function slideNext(speed, runCallbacks = true, internal) {
   const swiper = this;
   const { enabled, params, animating } = swiper;
   if (!enabled || swiper.destroyed) return swiper;
+  if (typeof speed === 'undefined') {
+    speed = swiper.params.speed;
+  }
   let perGroup = params.slidesPerGroup;
   if (params.slidesPerView === 'auto' && params.slidesPerGroup === 1 && params.slidesPerGroupAuto) {
     perGroup = Math.max(swiper.slidesPerViewDynamic('current', true), 1);
diff --git a/src/core/slide/slidePrev.mjs b/src/core/slide/slidePrev.mjs
index cfeac4540..46f972fea 100644
--- a/src/core/slide/slidePrev.mjs
+++ b/src/core/slide/slidePrev.mjs
@@ -1,8 +1,12 @@
 /* eslint no-unused-vars: "off" */
-export default function slidePrev(speed = this.params.speed, runCallbacks = true, internal) {
+export default function slidePrev(speed, runCallbacks = true, internal) {
   const swiper = this;
   const { params, snapGrid, slidesGrid, rtlTranslate, enabled, animating } = swiper;
   if (!enabled || swiper.destroyed) return swiper;
+  if (typeof speed === 'undefined') {
+    speed = swiper.params.speed;
+  }
+
   const isVirtual = swiper.virtual && params.virtual.enabled;
 
   if (params.loop) {
diff --git a/src/core/slide/slideReset.mjs b/src/core/slide/slideReset.mjs
index 52974b655..981da42cc 100644
--- a/src/core/slide/slideReset.mjs
+++ b/src/core/slide/slideReset.mjs
@@ -1,6 +1,9 @@
 /* eslint no-unused-vars: "off" */
-export default function slideReset(speed = this.params.speed, runCallbacks = true, internal) {
+export default function slideReset(speed, runCallbacks = true, internal) {
   const swiper = this;
   if (swiper.destroyed) return;
+  if (typeof speed === 'undefined') {
+    speed = swiper.params.speed;
+  }
   return swiper.slideTo(swiper.activeIndex, speed, runCallbacks, internal);
 }
diff --git a/src/core/slide/slideTo.mjs b/src/core/slide/slideTo.mjs
index 937fff202..133d295bb 100644
--- a/src/core/slide/slideTo.mjs
+++ b/src/core/slide/slideTo.mjs
@@ -1,12 +1,6 @@
 import { animateCSSModeScroll } from '../../shared/utils.mjs';
 
-export default function slideTo(
-  index = 0,
-  speed = this.params.speed,
-  runCallbacks = true,
-  internal,
-  initial,
-) {
+export default function slideTo(index = 0, speed, runCallbacks = true, internal, initial) {
   if (typeof index === 'string') {
     index = parseInt(index, 10);
   }
@@ -28,12 +22,15 @@ export default function slideTo(
   } = swiper;
 
   if (
-    (swiper.animating && params.preventInteractionOnTransition) ||
     (!enabled && !internal && !initial) ||
-    swiper.destroyed
+    swiper.destroyed ||
+    (swiper.animating && params.preventInteractionOnTransition)
   ) {
     return false;
   }
+  if (typeof speed === 'undefined') {
+    speed = swiper.params.speed;
+  }
 
   const skip = Math.min(swiper.params.slidesPerGroupSkip, slideIndex);
   let snapIndex = skip + Math.floor((slideIndex - skip) / swiper.params.slidesPerGroup);
diff --git a/src/core/slide/slideToClosest.mjs b/src/core/slide/slideToClosest.mjs
index fe427a54c..5082d97c4 100644
--- a/src/core/slide/slideToClosest.mjs
+++ b/src/core/slide/slideToClosest.mjs
@@ -1,12 +1,12 @@
 /* eslint no-unused-vars: "off" */
-export default function slideToClosest(
-  speed = this.params.speed,
-  runCallbacks = true,
-  internal,
-  threshold = 0.5,
-) {
+export default function slideToClosest(speed, runCallbacks = true, internal, threshold = 0.5) {
   const swiper = this;
   if (swiper.destroyed) return;
+
+  if (typeof speed === 'undefined') {
+    speed = swiper.params.speed;
+  }
+
   let index = swiper.activeIndex;
   const skip = Math.min(swiper.params.slidesPerGroupSkip, index);
   const snapIndex = skip + Math.floor((index - skip) / swiper.params.slidesPerGroup);
diff --git a/src/core/slide/slideToLoop.mjs b/src/core/slide/slideToLoop.mjs
index e20e713e1..864ca3153 100644
--- a/src/core/slide/slideToLoop.mjs
+++ b/src/core/slide/slideToLoop.mjs
@@ -1,9 +1,4 @@
-export default function slideToLoop(
-  index = 0,
-  speed = this.params.speed,
-  runCallbacks = true,
-  internal,
-) {
+export default function slideToLoop(index = 0, speed, runCallbacks = true, internal) {
   if (typeof index === 'string') {
     const indexAsNumber = parseInt(index, 10);
 
@@ -11,6 +6,11 @@ export default function slideToLoop(
   }
   const swiper = this;
   if (swiper.destroyed) return;
+
+  if (typeof speed === 'undefined') {
+    speed = swiper.params.speed;
+  }
+
   const gridEnabled = swiper.grid && swiper.params.grid && swiper.params.grid.rows > 1;
   let newIndex = index;
   if (swiper.params.loop) {