Tensor product of modules slow?

Here is the ideal sheaf of a surface represented by a graded module: `S = bordiga()` `I = defining_ideal(S)` `M = ideal_as_module(I)` Now I wish to compute the pluri-genera of the surface: `function pluri_genus(M::ModuleFP, n::Int)` ` V = repeat([M], outer = n)` ` T = tensor_product(V)` ` tbl = sheaf_cohomology(M, -4, 0)` ` return tbl[0, 0]` `end` I get, for example, as expected for a rational surface: `julia> pluri_genus(M, 2)` `0` To implement the Enriques-Kodaira classification, for more difficult surfaces, I need to compute these numbers up to `n = 6`. But that seems to be out of reach. The bottleneck in the function in `.julia/dev/Oscar/src/Modules/UngradedModules/Tensor.jl:120` is this line: `result, pr_res = quo(tot[0], I)` @HechtiDerLachs Any ideas?