signer.sendTransaction() when the bytes are send actually?

[misu200]

Hello,

Need to do some CPU synchronous computation ( for like 50-100ms) as fast as possible after the transaction data from sendTransaction() gets to the "kernel zone" but I dont want to block somehow the NodeJS event loop so my sendTransaction() gets delayed.

provider.sendTransaction();
cpuIntensiveSyncCodeFunctionFor100ms();

I am not very familiar with NodeJS and from the ethers.js code I can't figure out if sendTransaction() will send in a kind of "sync-ed"way the bytes on the socket .

There should be no "drain" events I guess since this operation is a one-time situation for the life of my running program.

Could somebody give me some hints about how should I approach this problem with ethers.js ?

Thanks,
Valentin