v1.3.2 is much slower than v1.3.1 if it's built into WebAssembly

[NOTE] This is just an FYI issue as I know this project doesn't officially support WebAssembly.

As I mentioned in https://github.com/google/lyra/issues/49, [shiguredo/lyra-wasm](https://github.com/shiguredo/lyra-wasm) maintains a no-patch WebAssembly build of Lyra.
Today, I updated the Lyra version to 1.3.2 (https://github.com/shiguredo/lyra-wasm/pull/10). However, it turned out that the encoding and decoding peformance is degraded after the update.

The following table is a benchmark result from https://shiguredo.github.io/lyra-wasm/lyra-benchmark.html.
(elapsed times taken to encode / decode 10 seconds audio data)

| Browser | Lyra Version | Encode Time | Decode Time |
|-------------------|-------------|--------------:|-------------:|
| Chrome (m1 mac) | 1.3.1 | 550.230 ms | 804.230 ms |
| Chrome (m1 mac) | 1.3.2 | 898.375 ms | 1144.754 ms |
| Safari (m1 mac) | 1.3.1 | 596.880 ms | 866.779 ms |
| Safari (m1 mac) | 1.3.2 | 905.639 ms | 1168.120 ms |
| Firefox (m1 mac) | 1.3.1 | 540.199 ms | 800.540 ms |
| Firefox (m1 mac) | 1.3.2 | 609.940 ms | 1064.080 ms |
| Chrome (android) | 1.3.1 | 1002.769 ms | 1040.140 ms |
| Chrome (android) | 1.3.2 | 1398.920 ms | 1621.900 ms |

I don't know the reason of this performance drop.
Any information that helps alleviate this problem is more than welcomed.