but I was thinking something, whether such a node can be used for help with transaction acceleration?
No, unless you mean rebroadcasting transaction (either manually or use script which do it automatically)
Yes, I mean that.
the last time we very often get a stuck transaction, last time I wait almost 48 hours for the first confirmation it sometimes complicates things for me. if it can help me speed up with tx confirmation, I will run it for sure.