Can I use xttest3 for N=33 and t=8 (panel data)?

Hello
I read the note the power of modified Wald statistic is very low in the context of fixed effects with "large N, small T" panels

Is it appropriate to use xttest3 in my data? (N=33 and t=8)
The result is
chi2 (33) = 432.18
Prob>chi2 = 0.0000
(Heteroskedasticity)

(Note: I use LM test for heteroskedasticity and get the result homoskedastic).

Thank you very much