Annoying behavior of Unicode symbol completion in JupyterLab

When typing Unicode symbols in JupyterLab, I find the completion behavior to be quite cumbersome. Currently, after entering a symbol name (for example, \alpha), I must press once to open the completion menu and then press or again to select the symbol. As I understand, in older versions of Jupyter, a single press was sufficient to complete the symbol. Is there a setting or a JavaScript tweak that can achieve this one-tab completion functionality?