Execution time speed compared to ArrayFire C++

Hi,
I have developed a Arrayfire image processing algorithm in C++. The execution time was around 78-80 ms. Then, I re-implemented the algorithm via the .NET wrapper. Now the execution time is around 120 ms. Is it normal?

PS: I also noticed the .net wrapper leverage 50 of the GPU however the original one used 100 percents
One more thing, the .net wrapped version has no "warm up" time however the original C++ version needs about 1 min to execute for the first time. I am not sure yet if its normal or not!

首先比較 issue 中描述的 C++ 與 .NET 實作，包括它們的執行時間、GPU 使用率和首次執行行為。完成的標準是確定所回報的差異是否符合預期，或識別出一個可重現的 wrapper 效能問題；payload 未指定任何檔案或測試。

由索引模型根據 Issue 內容生成。