diff --git a/libavcodec/riscv/opusdsp_rvv.S b/libavcodec/riscv/opusdsp_rvv.S
index 79ae86c30e..9a8914c78d 100644
--- a/libavcodec/riscv/opusdsp_rvv.S
+++ b/libavcodec/riscv/opusdsp_rvv.S
@@ -26,40 +26,34 @@ func ff_opus_postfilter_rvv, zve32f
         flw     fa1, 4(a2) // g1
         sub     t0, a0, t1
         flw     fa2, 8(a2) // g2
+        addi    t1, t0, -2 * 4 // data - (period + 2) = initial &x4
+        vsetivli zero, 4, e32, m4, ta, ma
         addi    t0, t0, 2 * 4 // data - (period - 2) = initial &x0
-
-        flw     ft4, -16(t0)
+        vle32.v v16, (t1)
         addi    t3, a1, -2 // maximum parallelism w/o stepping our tail
-        flw     ft3, -12(t0)
-        flw     ft2,  -8(t0)
-        flw     ft1,  -4(t0)
 1:
+        vslidedown.vi v8, v16, 2
         min     t1, a3, t3
+        vslide1down.vx v12, v16, zero
         vsetvli t1, t1, e32, m4, ta, ma
         vle32.v v0, (t0) // x0
         sub     a3, a3, t1
-        vle32.v v28, (a0)
+        vslide1down.vx v4, v8, zero
         sh2add  t0, t1, t0
-        vfslide1up.vf v4, v0, ft1
+        vle32.v v28, (a0)
         addi    t2, t1, -4
-        vfslide1up.vf v8, v4, ft2
-        vfslide1up.vf v12, v8, ft3
-        vfslide1up.vf v16, v12, ft4
+        vslideup.vi v4, v0, 1
+        vslideup.vi v8, v4, 1
+        vslideup.vi v12, v8, 1
+        vslideup.vi v16, v12, 1
         vfadd.vv v20, v4, v12
         vfadd.vv v24, v0, v16
-        vslidedown.vx v12, v0, t2
+        vslidedown.vx v16, v0, t2
         vfmacc.vf v28, fa0, v8
-        vslidedown.vi v4, v12, 2
         vfmacc.vf v28, fa1, v20
-        vslide1down.vx v8, v12, zero
         vfmacc.vf v28, fa2, v24
-        vslide1down.vx v0, v4, zero
         vse32.v v28, (a0)
-        vfmv.f.s ft4, v12
         sh2add  a0, t1, a0
-        vfmv.f.s ft2, v4
-        vfmv.f.s ft3, v8
-        vfmv.f.s ft1, v0
         bnez    a3, 1b
 
         ret