diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -2,11 +2,11 @@
 
 This project is a demo for a websocket-based rollback netcode inspired by [GGPO](https://github.com/pond3r/ggpo/blob/master/doc/README.md).
 
-_(the following [v0.8.8](https://github.com/genxium/DelayNoMore/releases/tag/v0.8.8) gif is sped up to ~1.33x for file size reduction, kindly note that around ~8s countdown, the attack animation is resumed from a partial progress)_
+_(the following gif is sped up to ~1.5x for file size reduction, kindly note that animations are resumed from a partial progress)_
 
-![gif_demo](./charts/smooth_melee_attack_spedup_v088.gif)
+![gif_demo](./charts/jump_sync_spedup.gif)
 
-Please also checkout [this demo video](https://pan.baidu.com/s/172AmIKxbFgGXZzWVqxNUPA?pwd=e2tp) to see how this demo carries out a full 60fps synchronization with the help of _batched input upsync/downsync_ for satisfying network I/O performance.
+Please also checkout [this demo video](https://pan.baidu.com/s/1Lmot9cb0pYylfUvC8G4fDg?pwd=ia97) to see how this demo carries out a full 60fps synchronization with the help of _batched input upsync/downsync_ for satisfying network I/O performance.
 
 The video mainly shows the following features.
 - The backend receives inputs from frontend peers and broadcasts back for synchronization.
diff --git a/charts/jump_sync_spedup.gif b/charts/jump_sync_spedup.gif
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diff --git a/charts/smooth_melee_attack_spedup_v088.gif b/charts/smooth_melee_attack_spedup_v088.gif
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