very slow interface constructor

[farfromrefug]

While profiling my apps i can see that some very simple interface can take a really long time to be "created" For example a very simple interface not extending anything and with one simple method takes 227ms to be created/call Here is the source of that interface

First is i wonder why it takes so much times. Then if it can't be solved is there a faster way? Extending seems to be real slow too.