For client side rendered SPAs, this won’t improve the performance and page responsiveness much since the whole application still needs to download and initialize. Therefore, the average website visitor won’t notice the performance improvement.
The true benefit of AOT compiling is on the server side rendered SPA, which improves load and initialization from an average of 100-150 milliseconds to less than 25-40 milliseconds under perfect conditions. Or compared to JIT compiling, from 400-500 milliseconds to 25-40 milliseconds. A huge performance boost!